A KNIFE-WIELDING robber leant into a man's car before threatening him and stealing his keys.

Thames Valley Police is now appealing for witnesses after the robbery in Bicester which took place at about 7.10pm on Wednesday.

Police said that the victim, a man in his twenties, was stopped behind a blue Ford Focus on the A41 Rodney House roundabout.

The driver of the Ford got out of the car and walked towards him.

He then threatened the victim with a knife, leant into his car and took the key out of the ignition before going back to his car and driving away.

The victim was not injured during the incident.

The offender is described as a white man, about 6ft 3ins tall with a skinny build. He was wearing a black face mask and a dark coloured tracksuit with a dark coat over the top.

It is believed that the car he was driving was a ‘58’ plate blue Ford Focus.

Investigating officer, PC Rebecca Biddle, based at Bicester police station, said: “I am appealing for any witnesses to this incident, or anyone who may have information, to please come forward.

“I would also ask motorists who was in the local area around the time this happened to check any dash-cam footage in case it may have captured something that could assist with this investigation."

Anyone with information can contact Thames Valley Police by calling 101 or making a report online, quoting reference 43200383350.

Alternatively, you can contact the independent charity Crimestoppers, if you wish to remain anonymous, on 0800 555 111 or online.