Police are appealing for information following an early hours of the morning assault in Tenby.
A male person walking up Greenhill Road in the direction of the town was assaulted from behind by three other males.
He was punched to the ground and hit a couple of times before the males ran off in the direction of The Green.
The assault occurred at approximately midnight on Saturday.
Anyone with information is asked to contact PC635 Thompson at the town's police station on 101.