Police are appealing for witnesses after two teenagers were robbed in Oxford.

The teenagers, both 18, were approached by a man in Broad Oak Park, adjacent to the Eastern Bypass Road in Wood Farm, between 6pm and 6.20pm on Saturday.

He threatened them with a knife, making a stabbing movement towards one of them before stealing a bag. They managed to push the suspect away and ran away uninjured.

He is described as white, in his early 20s and slim. He was 5ft 11ins to 6ft 3ins tall, wearing dark tracksuit bottoms and a top with a hood up. If you have information call 101, quoting reference number 43210052011.