Police officers searching for a Rotherham teenager missing since Boxing Day believe she is in the Harehills suburb of Leeds.
Patricia Zupkova, aged 15, of Eastwood, Rotherham, is believed to be with Diana Horvathova, also 15, from Leeds.
The girls, originally from Slovakia, recently took photographs of themselves which were recovered from a phone seized as part of the police probe into their disappearance.
Detective Inspector Steve Lavelle said: “We remain very concerned for the welfare of these two young girls and we are becoming increasingly concerned the longer they are out there without anyone knowing their whereabouts.
“The recent ‘selfie’ photos show they are still together.”