Police are hunting a robber with an artificial arm, who held up an off-licence at knifepoint.

Detectives believe the raider, who had a strong Welsh accent and a tattoo stating Pay Before Entry around his navel, is known locally.

He threatened a cashier at Bottoms Up, in Queen's Road, Brighton, with a knife, before making off with one bottle of alcopop.

Witnesses to the attack, which happened at 7.30pm last Tuesday, should contact PC Mike Simmonds on 0845 6070999.