We are investigating following a fire at a building on St Teilo Avenue, Barry, last night, September 10.

Emergency services were called to the building, which was under construction, at around 11pm.

Two 14-year-old boys have been arrested on suspicion of arson and are in police custody.

PC Gareth Owens, officer in the case, said: "This was a serious incident which has caused significant damage at the construction site.

"While we have people in custody, enquiries are still very much ongoing and I would appeal to anyone who believes they have information which could assist the investigation, to come forward.

"In particular, I would like to hear from a member of the public who stopped their vehicle to tell an officer they had seen two males tampering with a fire hydrant."

Anyone with any information can call 101 quoting reference 1900334909 or call Crimestoppers anonymously on 0800 555 111.