The unnamed Deerfield man was hit around 8 a.m. on the tracks on South Main Street near Thayer Road, the Northwestern District Attorney's Office said.
The cause of the crash remains under investigation.
According to Amtrak, the Valley Flyer Train 471 was traveling from Greenfield to New Haven.
The Massachusett Office of Chief Medical Examiner will perform an autopsy to help police as they investigate what led up to the crash.
This is a developing story. Check back with Daily Voice for updates.
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