Multiple people reportedly shot at Capital Gazette newsroom in Maryland

• Multiple people were shot at the Capital Gazette newspaper building in Annapolis, Maryland, on Thursday.
• It's unclear how many people were shot, or if there were any deaths.

Multiple people were shot at a newspaper building in Annapolis, Maryland, on Thursday, The Baltimore Sun reported.

The Anne Arundel County Police Department said it was investigating reports of an "active shooter" at the scene.

Agents from the Baltimore field division of the federal Bureau of Alcohol, Tobacco and Firearms also responded to the scene, the agency tweeted.

It's still unclear how many people were shot, or if anyone was killed.

This is a developing story. Refresh for updates.