Police are still trying to track down a university student who failed to turn up for Christmas Day with her family.
Isabel Gayther has not been seen since 11.30pm on Christmas Eve and her family say her disappearance is out of character.
Messages have been posted on the student's Facebook account that suggest she is well, but police say they have still yet to speak to her.
Ms Gayther, 21, lives in halls of residence in New Cross, south east London, and had been due to travel back to see her family in Oxford for Christmas Day, but failed to arrive, sparking an urgent police appeal.
A Metropolitan Police spokesperson said her disappearance is "extremely out of character" and that her family are very concerned for her safety and wellbeing.
In Facebook posts published on 27 December, Ms Gayther appears to write that she is not missing.
"A day and half I'm out of contact and this is what happens?" she appeared to write.
Ms Gayther is described as white, with olive skin and long dark hair, is of a slim build and was last seen wearing a dark-coloured dress.
It is believed Isabel has her phone with her, but that it is unreachable and that it is not known if she has access to money or transport.
- Anyone who has seen Isabel or who knows of her whereabouts is urged to contact police via 101.