HOUSTON -

A man police said was lying on railroad tracks in north Houston was hit and killed by a train late Saturday night.

Investigators said the man was laying on the tracks near Donlen Street and Frisco when he was hit.

Police said the train simply couldn't stop in time.

Investigators are working to figure out if the man passed out from drinking too much alcohol, or if he fell asleep on the tracks.

The victim's name hasn't been released.