Greg Plitt, a model, actor and reality TV star, has died after he was hit by a train while apparently filming a fitness video.

Plitt, 37, whose real name was George, was being videotaped by two men on the tracks on Saturday afternoon when he was hit by a passenger train, according to police in Los Angeles.

Investigators have ruled out suicide, and Plitt had shot workout videos on railroad tracks before.

Police have interviewed witnesses who saw Plitt standing on the track even as the train's horn was blaring, police told the Associated Press.