Emergency attended a road traffic collision that happened at 6.40pm Friday 29 November on Hall Road in Hull.
A 21 year-old motorcyclist was in collision with a car and has sadly died from his injuries.
The motorcycle that he was riding at the time of the collision was removed from the scene before the police attended.
Humberside Police are appealing for that bike to be handed in or for them to be informed as to where it is so that collision investigators can examine it.
Roads Policing Sergeant Matt Hemingway said, “I am not interested in why or how this bike was removed from the scene, I just want it to be handed in so that we can fully investigate the collision. A young man has lost his life tonight and I want to make sure a full investigation takes place so that his family can have the full facts.
“If you have any knowledge of where this bike is please call us now on 101 quoting log 487 29 November 2019.”