Lostprophets' frontman Ian Watkins has been charged with sexual offences against children.
The 35-year-old vocalist is due to appear at Cardiff magistrates court on Wednesday on charges of conspiracy to engage in sexual activity with a female under the age of 13 and possession/distribution of indecent images of children.
Watkins has been charged alongside two women in their 20s.
"Specially-trained staff are available to speak to anyone with concerns or information regarding this investigation and a dedicated telephone number has been set up," senior investigating officer Detective Inspector Peter Doyle is quoted.
"I want to encourage anyone who has any concerns or information which they think may be relevant to contact us.
"Safeguarding children involved in such cases is always a high priority and as such measures have already been taken."
Any members of the public with relevant information are requested to contact the authorities on 0800 056 0154, or the NSPCC on 0800 389 5347.
Update: 14.20, December 19
Ian Watkins has been remanded in custody and denied bail after appearing at Cardiff magistrates court this afternoon.
Watkins will appear before Cardiff crown court on December 31.
Update: December 20
The five other members of Lostprophets have posted a short statement to their website. It reads as below.
"Following charges made today against Ian Watkins, we find ourselves in a state of shock. We are learning about the details of the investigation along with you. It is a difficult time for us and our families, and we want to thank our fans for their support as we seek answers.
Jamie, Lee, Luke, Mike and Stu"