Two more men have been arrested in connection with the death of former Lostprophets frontman Ian Watkins.
The convicted paedophile, who pleaded guilty of his crimes in 2013, died from blood loss after his throat was said to be slashed.
Two men, aged 23 and 39, have been arrested from the jail on suspicion of conspiracy to murder.
West Yorkshire Police said both men are in police custody and will be interviewed on Tuesday.
They will then be bailed and returned to prison while inquiries continue.
Rashid Gedel, 25, who was referred to as Rico Gedel during the hearing, and Samuel Dodsworth, 43, are also charged with murder over the alleged attack.
