Lostprophets singer Ian Watkins has died after being attacked in jail, prison sources have confirmed.

The disgraced rock star from Pontypridd was serving a 29-year sentence at HMP Wakefield for child sex offences.

West Yorkshire Police said they were called to the prison on Saturday morning to an assault on a prisoner, who was pronounced dead at the scene.

Watkins was jailed in December 2013 for a string of child sex offences, including the attempted rape of a baby.

A Prison Service spokesperson said it was aware of an incident at the prison.