Tonight the massive factory explosion and the search for the missing, the intense rescue mission inside a steel plant after the giant explosions sent a tower plume of smoke into the air. One person killed, another missing, and 10 more injured. What happened? And the concern tonight about the air. Also breaking tonight the killings inside of a target

parking lot, a man in custody accused of shooting three people and carjacking two cars in Austin,

Texas. The flash flood emergency in Wisconsin, plus the incredible lightning strike caught on camera

as we track Tropical Storm Aaron where it's headed and will it become a hurricane.

The president's DC takeover declaring a crime emergency and taking control of the city's

police department and sending in the National Guard. Washington's mayor calling it, quote,

unsettling and unprecedented as protesters take to the streets.

Plus, why a judge just denied the president's request to release the Galane-Maxwell grand jury

transcripts. Missiles strike Ukraine with that high-stake summit just days away in Alaska,

Trump and Putin face to face, but is it still on track? And will a key ally, Ukraine, be left in the

cold? The high-speed chase through Los Angeles armed carjacker stealing three different vehicles,

including a big rigged milk truck driving the wrong way down the street, and they're still at

large tonight. Plus, the kid, his goat, the fourth place finish,

and the moment of pure joy caught on camera. Wait till you meet this five-year-old and hear why that

ribbon meant so much. Nightly News starts right now. This is NBC Nightly News with Tom Yamas. And good evening. As we come on the air, the deadly

explosion at a U.S. steel plant just outside of Pittsburgh tonight. You can see it right here,

the moment of that blast, thick black smoke surging out of the plant, the desperate search right now for one

person who is still unaccounted for, with one person confirmed dead and 10 more injured.

Officials warning residents within a mile to remain indoors and to close their windows,

the health department monitoring potential air danger.

Adrian Bradis and her team have her made their way to the scene there in Clarendon, Pennsylvania.

Tonight, urgent rescue efforts underway to find one missing worker from this steel plant.

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