Investigators looking into the downing of Malaysia Airlines Flight 17, which was shot down over eastern Ukraine in July 2014, say the Russian missile that hit the plane originated from a Russian military unit.

The passenger jet crashed, killing all 298 people aboard. Moscow has denied being responsible.

North Korea closed its nuclear test site in spectacular fashion Thursday, blasting the site in what one observer described as a "huge explosion."

"You could feel it. Dust came at you, the heat came at you," reported Sky News' Asia Correspondent Tom Cheshire, a British broadcaster who was invited to the demolition.

President Trump praised the NFL's decision to mandate that players either stand for the national anthem or stay in the locker room in a TV interview that aired Thursday.

And he questioned whether players who choose not to stand "proudly" should be in the country at all.

President Trump is weighing new protections for domestic automakers, saying American auto workers have "waited long enough."

Trump met Wednesday with Commerce Secretary Wilbur Ross and instructed him to consider an investigation into possible tariffs on imported vehicles and auto parts.

A similar investigation launched last year resulted in a 25 percent tariff on imported steel and a 10 percent tariff on imported aluminum, although in many cases those tariffs have been suspended while the U.S. negotiates with exporting countries.

Updated at 3:50 p.m. ET

White House senior adviser Jared Kushner, President Trump's son-in-law, is regaining a top security clearance following a marathon interview last month with special counsel investigators, a person familiar with the matter said.