Lostprophets frontman Ian Watkins has been placed on suicide watch, after being arrested and charged with 24 sexual offences in December last year.
Watkins denies the charges, which include conspiracy to rape a baby and possessing an extreme image of a person having sex with an animal.
According to the Independent, a clinical psychologist recommended that Watkins is checked five times per hour, and recommends that he is taken from prison to a psychiatric hospital.
Two others are accused in a similar set of accusations, who cannot be named for legal reasons. One, aged 24, denies all charges, while the other aged 20 has admitted sexually touching a child and taking and sharing indecent images of it.
In June, Watkins made a statement outside the court which was read by a representative:
"I want to thank my family, friends and all the fans for their continued support throughout this whole ordeal. Your support gives me strength, I deny all the allegations made against me and will continue to fight to the end to clear my name."
The full trial is set to begin on November 25.