GILBERT, Ariz. (AP) — Authorities say the death of a man who was lying across railroad tracks and fatally struck by a train in Gilbert is being investigated as a possible suicide.

The name of the 56-year-old man wasn't immediately released Thursday.

Police say the man was struck at the railroad crossing south of Baseline Road about 10:30 p.m. Wednesday.

They say all railway safety measures were functioning properly when the incident occurred.

Police say the man's death remains under investigation.