A man was stabbed in the head and bitten in the face in an unprovoked attack, police said today.

The victim, in his early 30s, was visiting a friend in Moulsecoomb, Brighton, yesterday when the attacker called at the flat.

Police said he was agitated and for no apparent reason confronted the victim.

He produced a knife, stabbed the man in the head and bit him on the arm and face.

The injured man fled and was later treated at the Royal Sussex County Hospital, Brighton, for scalp wounds.

Police arrested a 21-year-old man at the address.