This masked man is wanted for a knife-point robbery of a bus driver in Oxford.

The man, with tights covering his face, burst on to the Stagecoach 7C bus on London Road, Headington, near the Green Road roundabout at 10.25pm on Sunday.

He threatened the bus driver with a knife and blunt weapon concealed in a sock and forced him to hand over cash.

The robber fled with cash and was last seen walking towards Green Road roundabout.

Dc Simon Hannam said: "This is a very serious offence; a man has been threatened with a knife and assaulted. The bus driver was punched in the head and went to the JR11 hospital with a cut finger.

"The man is 6ft, medium build and was wearing dark tights over his face.

"I would urge anyone who witnessed the robbery and not yet spoken to the police, or was in the area at the time and saw the man at the time of the incident to come forward."

Anyone with information should contact Dc Hannam at Oxford police station via 0845 8 505 505 or speak anonymously to Crimestoppers on 0800 555 111.