Police have released CCTV images of a man they are looking for after a freight train crashed into objects that had been put on the track.
British Transport Police said a man had trespassed near Spring Bank West, Hull, on 19 July and put metal items, including railway signalling equipment, on the tracks shortly after 05:30 BST.
“A freight train later struck the items, causing severe damage and bringing the train to a standstill,” a spokesperson said.
The force said officers believed the man in the CCTV images “may have information” that could assist their inquiries.