They are currently in CYF custody on an unrelated matter and police are in the process of arranging to speak with them.
"Both are under the age of 17 and we are therefore limited to any further discussion on this aspect, but we can advise that we are not looking for anyone else in relation to this incident.
"We have advised the family of the victim of this development a short time ago, and they are understandably relieved to hear this news."
Pritchard-Davis has been remanded in custody and is set to reappear in court in two weeks.
The spokeswoman thanked "the hundreds of people" who helped with the police investigation.
"The public and media assistance we received has got us to this point," she said.
"We had dozens of calls with information, as well as many private messages to our Facebook page. Hundreds of people shared the link to the Facebook video, and this in turn ensured that as many people as possible saw the CCTV footage."