A teenager is being quizzed by detectives in connection with the deaths of two young women who were found stabbed in a flat.
The bodies of Kimberley Frank, 17 and Samantha Sykes, 18, were discovered at an address in the Eastmoor area of Wakefield, West Yorkshire.
A post-mortem carried out last night revealed they both died of stab wounds.
A 19-year-old man arrested on suspicion of the killings remained in police custody today, while a 19-year-old woman and a 23-year-old man who were arrested on suspicion of murder were released without charge on Sunday.
Kimberley, of Barden Road, Eastmoor, and Miss Sykes, of California Drive, Horbury, West Yorkshire, were found in the first floor property early on Saturday morning.
Officers from West Yorkshire Police were called to Barden Road after they were contacted by colleagues in Kent.
They said a 19-year-old woman in Dover had raised concerns for the safety of two women from the West Yorkshire area. The bodies were found after the flat was searched.
Forensic examinations have continued in Barden Road over the weekend.