MATTAPOISETT — Authorities have shut down access to a portion of Mattapoisett during an ongoing search for a man in the area.

The Mattapoisett Police Department says they are searching for a man in the area of Route 6 in the town, and shut down access to Route 6 from the Fairhaven town line to Brandt Island Road.

Helicopters were seen flying overhead and police are heavily armed, some carrying M-16s.

Police have not disclosed why they are searching for the man or if he is armed.

Mattapoisett Police ask residents to lock their doors and remain inside.  Police also ask that any suspicious activity in the town to contact the Mattapoisett Police Department.

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