Large police response at Naval Station Great Lakes

NORTH CHICAGO, Ill. (WLS) -- There was a large police response Wednesday at the Naval Station Great Lakes.

Chopper 7 over the afternoon emergency response in the north suburbs.

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Officers apparently surrounding the USS Missouri building.

An ambulance could be seen at the scene.

The Naval Station Great Lakes is a large training installation for the Navy.

ABC7 is working to learn what happened.