BOSTON (AP) — People in the vicinity of Fenway Park this weekend shouldn't be alarmed if they hear explosions and gunfire coming from the home of the Red Sox.

The ballpark on Sunday will be the site of a multi-agency counterterrorism exercise.

The exercise is being conducted by the Boston Police Department, the Department of Homeland Security and the Army's Armament Research, Development and Engineering Center.

Police, state and federal first responders and Red Sox security personnel will react to simulated scenarios meant to test preparedness and new technologies for large events.

People are asked to avoid the area and may hear simulated explosions and realistic-sounding simulated gunshots.

Parts of Yawkey Way and Van Ness Street will be closed off during the exercise, which will run from 7 a.m. until 1 p.m.