The exact contours of the federal investigation are not known. But multiple witnesses who testified at the Read trial were summoned to appear before a federal grand jury, including former Massachusetts State Police Trooper Michael Proctor.

FBI investigations have been slowed or stalled by the second-longest U.S. government shutdown in history, leaving the bureau without funds to pay informants or make undercover drug or gun buys, gaps that an FBI spokesperson said are putting national security at risk.

UFC CEO Dana White breaks silence on the fight-fixing allegations stemming from UFC Vegas 110, and gives a timeline of the suspicious incident.

Several agencies served a federal warrant in a Katy-area neighborhood this afternoon. We're working to learn more.

Video of the deadly Louisville, Kentucky, crash showed flames on one of the plane's wings and a huge fireball erupting as the aircraft hit the ground.

At least four more FBI officials with ties to investigations into President Donald Trump have been ousted since Friday, NBC News reported Monday.MSNBC host Nicolle Wallace announced the report during her second hour of her show before a larger discussion about former special counsel Jack Smith.

UFC CEO Dana White speaks on Isaac Dulgarian's suspicious loss and the sudden rash of UFC fighters claiming to have been approached to fix a fight.

The defense lawyer for one of the men said he expects his client to be charged or released from jail on Monday.