A knife-wielding robber attempted to steal cash from a small post office in East Grinstead.

Police were called shortly after the raid on the Stone Quarry Post Office in Hollands Way after the suspect walked in and threatened a staff member at 9.30am today.

Officers say the man was brandishing a knife and attempted to intimidate the staff member.

But as he tried to climb over the counter he was pushed back, and so he then ran off.

A post office worker believes he may have ridden off from the area on a small-engined motorbike.

The worker is not believed to have been hurt during the incident, and gave a description to officers.

The suspect is described as white, 5ft 10ins and in his early 20s. He was clean shaven and of average build, the police said.

Detectives say he spoke with a southern accent and was wearing all-black motorcycle clothing with a white crash helmet.

Detective Constable Mel Pyle said: “We are keen to speak to anyone who saw what happened or who may have seen the suspect making off.

“It is possible drivers with dash cameras fitted to their vehicles may have captured footage of the motorcycle and its rider."

Anyone with information is asked to report it to the police by calling 101 and quoting incident 362 of 30/06.

Information can also be reported to detectives on the Sussex Police website.

Alternatively, report information anonymously by contacting Sussex CrimeStoppers on 0800 555 111.