BEDFORD (CBS) — A man was struck and killed Sunday by a snow plow at the Veterans Administration Hospital in Bedford.

Bedford Police and Fire units, as well as the United States Department of Veterans Affairs Police responded to a parking lot on hospital property shortly before 6 p.m.

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Police said a preliminary investigation indicates that the 60-year-old victim, a resident of 100 Pride Way on VA property, was struck by the rear of the plow truck as it was backing up. The operator stopped immediately and made the initial 911 call.

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The unidentified man was transported to Lahey Hospital in Burlington, where he was pronounced dead.

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The Massachusetts State Police Collision Analysis & Reconstruction Section was called in by Bedford Police to assist in the investigation. The incident is under investigation by the Bedford Police Department, the VA Police, and the Middlesex District Attorney’s Office.