Aerial footage taken March 31 showed a train that was intentionally derailed to smash into the Navy hospital ship Mercy at the Port of Los Angeles. (Video: Reuters)

On Tuesday afternoon, California Highway Patrol officer Dillon Eckerfield was rumbling down Harbor Avenue on his police motorcycle, in San Pedro, Calif., when he witnessed a strange sight: a freight train flying off the end of the tracks.

It didn’t even try to slow down. He watched it smash through the concrete and steel barriers at the track’s dead end, near the Port of Los Angeles. It crashed through a chain-link fence, careened through a parking lot and another gravel lot — barely missing three occupied vehicles — and then finally, after taking out another fence, came to a halt.