A SECURITY guard was punched in the stomach before his attacker fled wielding a knife at a Tesco Express in High Wycombe this afternoon.
The incident happened at around 3pm outside the convenience store on London Road.
The guard gave chase after being assaulted but the attacker ran off brandishing a knife at him.
The attacker is white, in his late fifties, with short black and white hair. He was wearing blue jeans and a coat.
Anyone with information that may assist the investigation, should contact Stephen Howells at High Wycombe police station, on the non-emergency number 101.
If you don't want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at crimestoppers-uk.org.
No personal details are taken, information is not traced or recorded and you will not go to court.