The FBI is investigating five letters containing white powder sent to 26 Federal Plaza, sparking an evacuation and urgent testing at its Quantico lab.

BERKELEY, Calif. (KGO) -- The FBI is now involved in the investigation into violent protests at U.C. Berkeley over an appearance by controversial editor Milo Yiannopoulos.

The increased law enforcement presence drew a crowd of protesters a day after the National Guard was deployed on city streets.

After a man was indicted for his role in a “violent protest” at a Portland ICE facility, his alma mater, Reed College, announced it is opening an investigation into a staffer who gave

Envelopes containing an unidentified white powder that were found at a government building in New York City did not contain any dangerous substances, officials said.

A federal grand jury has indicted two Southern California residents on charges that they allegedly assaulted federal officers during an anti-immigration enforcement protest last month outside a federal building in downtown Los Angeles,

AUSTIN - Senator John Cornyn said Thursday that the Federal Bureau of Investigation had agreed to assist in tracking down dozens of Democratic Texas lawmakers w

Jacob Hoopes faces charges after allegedly assaulting an ICE officer during a protest. A Reed College employee shared his info with the FBI, leading to his arrest.