British Transport Police officers are investigating the robbery of a teenage boy on a train from Egham to Hounslow.

The 14-year-old boy was approached by a man who boarded at Feltham station. The man demanded his bike and threatened to stab him.

He made the boy get off the train at the next stop Hounslow, and he remained on the train with the boy’s bike.

The police have released an image of a man who they believe could help with their investigation.