In this frame from video, people leave the Capital Gazette newspaper after multiple people have been shot on Thursday in Annapolis, Md.

BALTIMORE – A shooting has occurred at the Capital Gazette in Anne Arundel County, a paper that is owned by The Baltimore Sun, according to reports from Gazette staff members.

Anne Arundel County Police confirmed there was an “active shooter” at 888 Bestgate Road, where the newspaper's offices are located. The Bureau of Alcohol, Tobacco, Firearms and Explosives confirmed it was responding to a “shooting incident” at the Gazette.

Phil Davis, a Gazette reporter, said multiple people had been shot. Police did not immediately respond to requests for further information.

Police said the building was being evacuated as officers continue searching it.

Agents with the ATF were on the scene in Annapolis to provide support to local law enforcement, said Amanda Hils, a spokeswoman for the federal agency. ATF can help with tracing weapons, conducting interviews and other assistance.

Police were also at the Sun newsroom in Baltimore. Police said there was no threat on the Sun, and that law enforcement presence was a precaution.