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Tonight, an American mother and her child kidnaped in Haiti as gang violence overtakes that country. The aid worker from New Hampshire taken along with her young child as the U.S. embassy evacuates all nonessential personnel there. Warring gangs now control most of Haiti's capital. Former President Trump blasts the special counsel in his first rally since new charges were filed against him.

Another indictment on election interference could come this week. Plus, the brutal heat wave is not over for millions. How it's driving up gas prices for all Americans. Protests turn violent in Niger as the military locks up the African country's leader in an attempted coup. Our correspondent, the only American reporter there. Drone attacks inside Moscow. How the war is coming to Russia's capital.

Rare access inside the CDCR lab to fight mosquitoes. Why they're becoming immune to insecticides.

This is NBC Nightly News with Kate Snow.

Good evening. For months, we've watched a chaotic situation in the country of Haiti devolve as violence increased and gangs took control. Tonight, an American mother and her child have been caught up in all of that lawless ness. Alex Durst, Dawsonville, was working in Haiti as a nurse at a school run by a Christian aid group. She and her child were taken on the same day the US government began evacuating much of its embassy staff in that country.

The State Department warned Americans not to travel to Haiti and urged any American citizens still there to leave as soon as possible. Now there are questions about what the U.S. can do to help free the Americans being held there. Allie Raffa starts us off tonight.

Tonight, an American nurse and her child missing after being reportedly kidnaped. As violence sweeps across the island nation.

I'm a nurse from New Hampshire, but now.

I live in Haiti. 31 year old Alex Dawsonville and her child were taken Thursday from the campus of a Christian nonprofit near Haiti's capital, Port au Prince. Her husband founded the nonprofit which confirmed the Kidnapings, saying they were taken while serving in the community ministry. But details about how they were abducted are still unclear. The State Department ordering evacuations from Haiti's U.S. embassy and issuing its highest level travel warning the same day the pair was kidnaped since the assassination of its president in July of 2021 and an earthquake one month later.

Haiti has collapsed into anarchy, with armed gangs now controlling an estimated 80% of its capital.

We have very deep concern for the situation there. We are also very focused on working together with partners to try to help the Haitians restore security, restore stability.

Efforts by the international community to form a multinational police force had made little progress until Saturday, when Kenya volunteered to take the lead. Alex and her child, a parent, victims to the country's chaos as the search for them continues.

Allan, I know you're with the president in Delaware tonight. What's the latest from the White House on these reports?

Kate, a White House official is telling us tonight that they're closely monitoring the situation and in regular contact with Haitian authorities Kate.

All right. Now to politics and the latest legal troubles for former President Trump. Mr. Trump was defiant during his first rally since new charges were filed against him on Thursday. And tomorrow, the property manager of his Mar a Lago resort is scheduled to appear in court in Miami. Marissa Parra has the details.

It's a great badge of honor because I'm being.

Indicted for you.

Former President Trump on the offense in Erie, Pennsylvania.

All they're doing is hoping for massive election interference.

It was his first rally since Special Counsel Jack Smith added new federal charges against him, including willful retention of national defense information and obstruction of justice.

Is the most ethical American I know.

An attorney representing the former president denies accusations that he and his employees tried to delete surveillance footage from Mar a Lago.

No tapes were deleted. He turned them over.No tapes were deleted. He turned them over.

At the center of that charge. Carlos de Oliveira, a property manager at Mar a Lago, accused in the new indictment of telling another employee that the boss, referring to Trump, wanted the server deleted. De Oliveira is scheduled to make his first court appearance in Miami Federal Court tomorrow. Slightly further north this weekend, new barriers put around the Georgia courthouse at the center of his newest legal battle on election fraud.

The Fulton County district attorney signals a.

Decision could be near for two and a half years and we're ready to go.

Meanwhile, 2024 GOP contenders now beginning to tentatively bring up the charges against their lead rival, Mr. Trump.

I don't think he's the right president at the right time going forward. Otherwise, we will have a general election that's doing nothing but dealing with lawsuits.

And looming over all of this new federal charges from special counsel Jack Smith over election fraud could come as soon as this week. The grand jury in that case expected to meet on Tuesday.

Kate?

All right. The extreme heat is also pushing up gas prices at the pump, hitting new highs for the year across the country. Dana Griffin has those details.

Have you noticed prices at the pump climbing? It's not a mirage, but as the country sizzles under sweltering heat, so do our wallets.

I've been going to work every day watching my gas tank go down and I've been watching the gas prices go up.

Gas prices have spiked, averaging $3.75 a gallon, according to triple J. $0.16 higher than last week, but still cheaper than a year ago, with California once again approaching $5 a gallon. Experts say cuts in production are to blame, but so is the record breaking heat.

You've got a lot of refineries that are coughing and wheezing. They're not really geared to run with ten or 15 days of 100 degree temperatures in a row.

And as we move into peak hurricane season, the industry fears prices will continue to spike.

When a hurricane enters into the Gulf of Mexico. Supplies can be disrupted, resulting in higher gasoline and diesel prices.

How is this going to impact consumers?

I expect that gasoline prices are going to continue to rise another 7 to $0.10 a gallon. And that means the cost to deliver goods and services to the consumer is going to increase as well.

That they'll take money out of grocery to make sure I have gas to get to the store. So it's like it's like a lose lose situation. For now, the only hope for drivers is to figure out a way to spend less time on the road until prices come back down. Dana Griffin, NBC News.

In Pakistan, a suspected suicide bomb exploded at a political rally, killing at least 55 people, injuring more than 100. You can see the frantic scene just moments after that bomb went off. The blast happened near the border with Afghanistan. It was one of the worst attacks Pakistan has seen in years. The power struggle in the African nation of Niger is ramping up tonight with violent protests erupting after a military coup there.

Niger is the latest government in the region to fall to leaders who have seized power by force. The six countries stretching across the entire continent. NBC News has the only American reporter on the ground in Niger where our Courtney Kuby reports from inside.Niger is the latest government in the region to fall to leaders who have seized power by force. The six countries stretching across the entire continent. NBC News has the only American reporter on the ground in Niger where our Courtney Kuby reports from inside.

As thousands took to the streets in Niger's capital today. The protests turned violent. Crowds attacking the outside of the French embassy.

Something I was.

Burning a.

Perimeter door and breaking windows, but not breaching the walls. We were driving through the capital when we saw the protest largely peaceful, with most there to show support for the Nigerian military leaders who have locked up the country's democratically elected president and claimed control. At the same time, leaders from neighboring countries held an emergency summit demanding the release of the president.

Or else.

Such measures may include the use of force.

The U.S. government has not officially called this a coup. If they did, they'd have to suspend more than $400 million in aid to Niger, as well as critical military cooperation to battle terror groups in West Africa. Nations around the world have condemned this coup, but as they cut ties with Nigeria, the concern is this nation could pivot towards Russia for its security assistance.

Kate.

Courtney Kube for us, thank you. To Moscow now where Ukraine appears to be taking the fight inside Russia. After explosions from drone strikes rocked Russia's capital. Matt Bradley has the latest.

Tonight, the war is once again hitting the heart of Moscow. Drones damaging buildings in the central business district here. We heard an explosion and it was like a wave. Everyone jumped, said this eyewitness. Russia's military said it shot down all the drones, though authorities briefly suspended flights at a nearby airport. Only one person was injured in the attack, according to Russia's state news agency.

But this was the fourth time the capital has come under fire in recent weeks, exposing how Russia remains vulnerable. Even far behind its front lines in Ukraine. Ukrainian officials did not take direct responsibility for the attack.

GREEN As the image in.

Ukraine is getting stronger, Ukraine's President Zelensky said gradually the war is returning to the territory of Russia. Russian President Vladimir Putin didn't appear to skip a beat. Just hours after the attack. Visiting Navy sailors in St Petersburg.

Slava Cuomo flew to rescue.

Guarding an image of complete control. But as the war creeps closer to home, ordinary Russians may wonder whether the price of Ukraine is worth paying. Matt Bradley, nbc news.

Still ahead tonight, we'll take you inside the kdka's fight against mosquitoes with rare access to a lab on the front lines. We're back with new warnings about West Nile virus. Health departments across the country are finding more mosquitoes carrying that virus. Our Erica Edwards has a rare look inside the CDC labs studying mosquitoes and how to stop them.

This is where we raise the mosquitoes.

Inside this CDC lab in Fort Collins, Colorado. Swarms of mosquitoes.

It's probably tens of thousands of individual mosquitoes.

I'm glad we're suited up then. Boxed in, bottled up and studied. All in an effort to control an epidemic.

West Nile virus is one that really is endemic in the U.S. right now.

The debilitating disease carried by mosquitoes is a major concern for the CDC. One fear for researchers like Roxanne Connolly. Mosquitoes are becoming stronger than the chemicals meant to kill them.

We have seen resistance across the country.

That's what they're testing here, finding in some cases the bugs are becoming immune to insecticides.

It is like antibiotic resistance and we can't keep using the same products over and over because we do end up with a situation like this.

Repellents, however, still work well. Watch as Connolly sticks her arm into this cage filled with mosquitoes. Oh, are they biting? Not yet. You can see them swarming her arm, but after a spray, the bugs steer clear. There's not a single mosquito on you.Repellents, however, still work well. Watch as Connolly sticks her arm into this cage filled with mosquitoes. Oh, are they biting? Not yet. You can see them swarming her arm, but after a spray, the bugs steer clear. There's not a single mosquito on you.

Right. And that's what we want. That's what we expect out of a repellent that no mosquito will land on you or bite.

John Vandenburg is adamant about bug spray after he was infected with West Nile.

Just told my wife Janine that this is I'm not feeling good and I just went down on the floor.

The virus had gone to his brain, robbing him of his ability to think clearly, read and write. Paralyzing his arms and legs.

I didn't know whether my mobility would ever come back. Was I going to be paralyzed for life? It was pretty scary time, Juanjo.vv

Five years later, he's still recovering. And while Vandenberg's case is rare.

We have had young, healthy individuals who have ended up with paralysis for the rest of their life. So no one is immune from.

Getting West Nile.

Virus disease.

And the CDC is on heightened alert this year after an unusually wet spring in much of the country. Here in the lab, you can see mosquito eggs thrive in standing water. How many eggs are in each one of these little grains of rice?

150 to 200 in each. One of those.

A perfect breeding ground for a very real threat. How concerning is that to you?

It is very concerning because we want to make sure that the public understands that this is something different than what we've been seeing for the past few years.

Erica Edwards, NBC News.

There's good news tonight. An incredible story that kept one heart beating and brought these two strangers together.

There's good news tonight about how one heart helped two people heal together and their bond can never be broken.

Their heart recipient.

This letter.

One of Thomas's greatest passions, was health and fitness.

Took Leah Osman three months to write.

Off and think about how differently I would feel about the loss of Thomas without the organ donation process.

It's a letter to the man now carrying her son's heart. Thomas, just 19 years old, passed away in a motorcycle accident last year.

Thomas was just a good kid. I was so proud of the person that he grew into.

She didn't know if her letter would get an answer.

Even though all I know is you were a 50 year old man.

But it did.

Treat it well, handle it with care. It is special.

That man moved to tears is Jason Summers, whose life was saved by Thomas's donation.

He'll definitely be my forever hero.

The father of six suffered a heart attack in 2021. He spent over a year and a half waiting for a donor.

I still have my moments where I'll just. I'll just sit and cry. I mean, I'm just so grateful.

Jason had lost his own son last year, deepening the connection between him and Leah on what would have been Thomas's 20th birthday. Leah drove over 500 miles to meet Jason. It's good. It's good. And be close to her son once again.

66 a minute. Healthy.

I wondered what it was like when you put your head to his chest and listened.

Overall, it was just an amazing, happy moment for everybody. It's so surreal and it felt like it wasn't really happening.

Okay.

The two building a lasting relationship. Jason, you guys are going to know each other for the rest of your lives.

Oh, we're family for sure.

One heart uniting, two families.

I will try to do my best to protect both.

You will.

I know you will. Okay. Congratulations. You got a good heart.

I feel so much.

Oh, Leah and Jason both said to me that they hope any attention their story gets will inspire other people out there. All of you to sign up as organ donors. That is their wish. That is NBC Nightly News for this Sunday night. I'm Kate Snow. For all of us here at NBC News, stay safe. Have a great night.

Oh, wow.

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