Workers bound during armed robbery at Brockton AT&T store

Police are searching for the person responsible for the armed robbery of an AT&T store in Brockton, Massachusetts.

Officers responded to the store on Pleasant Street just before 8 p.m. Police ultimately recovered a sawn-off shotgun and a duffel bag filled with merchandise.

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Three employees were in the store when the man entered. One of them told NBC10 Boston that they were bound by the robber.

The workers were not hurt, that person said.

Surveillance footage shows the man pulling down the blinds in the store, staying inside for about five minutes before dragging out a duffel bag.

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Brockton police officers and members of the Plymouth County Sheriff's Department remained in the store for about