Two men - one with a knife and one with a handgun - threatened a walker and stole his mobile phone, wallet and jacket in Stokenchurch.

The men got out of a black BMW X5 in Marlow Road - near the junction with Hartmoor Close - on Saturday, November 30 between 5pm and 6pm.

Armed with a handgun and a knife, they went up to a 35-year-old man who was walking and then robbed him of his wallet, black leather jacket and his mobile phone.

Police are treating it as a robbery and have released descriptions of the men.

The first is black, aged in his late forties and is about 5ft10ins to 6ft tall with a proportionate build, short black cropped hair and clean shaven. He was wearing dark clothing.

The second is black, aged in his mid-thirties and is about 5ft10ins to 6ft tall with an average build and with very short black cropped hair. He was also wearing dark clothing.

Investigating officer, Detective Constable Jonathan Harland, based at High Wycombe police station, said: "This was a concerning incident, and I am appealing for anyone with any information relating to it to come forward.

"If you saw this take place, or have any information which you think could be relevant, please call us on 101, quoting reference number 43190375027."