The San Francisco International Airport’s international terminal was evacuated on Friday night due to police activity, officials said.

The airport announced the evacuation on Twitter at 9:28 p.m. without providing details about the police activity.

The airport’s AirTrain and the Bay Area Rapid Transit trains were suspended. The airport’s BART station was closed by 8:42 p.m., according to a tweet from the transit agency.

Story continues below advertisement

Passenger drop-offs and pick-ups were limited to the airport’s domestic terminals.

Additional information was not immediately available. A spokesperson for the airport did not immediately return a request for comment.

Our Morning Update and Evening Update newsletters are written by Globe editors, giving you a concise summary of the day’s most important headlines. Sign up today.