A 14-year-old boy was arrested last night after attempting to steal sandwiches and then assaulting a supermarket staff member.

A Dyfed-Powys Police spokeswoman said: "A 14-year-old boy was arrested at Morrisons in Haverfordwest at around 9.25pm on Monday, April 29.

"He attempted to steal sandwiches and when approached assaulted a member of staff causing minor injury.

"Police attended and made the arrest and has been released under investigation."

An eye witness said they saw blood and broken glass from smashed bottles on the floor.

A Morrisons spokeswoman said: "We are assisting the police with the inquiry".