Authorities have identified a man who was hit and killed by a train in Marietta.

The Marietta man, Anthony McCullum, 27, was walking along the tracks near the Square Monday afternoon when he was hit from behind by a CSX train, according to police.

The accident, which happened a little before 6 p.m. on Polk Street, caused police to block several nearby intersections for more than an hour. McCullum was taken to WellStar Kennestone Hospital where he died from his injuries, said David Baldwin, police spokesman.

“The investigation is still ongoing as to why he was struck,” Baldwin told the Atlanta Journal-Constitution.