ALERT: Shots fired near police during traffic stop at shopping center

Federal courthouse in Boston evacuated after bomb threat

Boston Courthouse Evacuation

(CNN) —  The federal courthouse in Boston was cleared Wednesday afternoon, according to a CNN reporter at the scene.

Security guards asked people in the building to get out. No reason was given.

The federal courthouse in Boston was cleared Wednesday afternoon, according to a CNN reporter at the scene. Security guards asked people in the building to get out. No reason was given.

Aerial video showed a heavy police presence outside the courthouse.A law enforcement official said the courthouse was cleared because of a bomb threat.

Click here to watch LIVE coverage of this developing story on WTVR.com from WBZ in Boston.