Police searching for missing 16-year-old girl Courtney Anderson have extended their hunt to also looking for a 24-year-old man.
Officers are also trying to find Luke Ratcliffe who has been found with Courtney on previous occasions.
Courtney has been missing from her home in Norfolk Drive, in the Melbourne area of Chelmsford, since Friday, October 17. She is described as white, around 5ft 2ins tall and has very long brown straight hair.
She has not been in contact with her family since leaving home.
Inspector Paul Morton, of Chelmsford Police, said: "We are concerned for Courtney 's safety and her family are worried about her.
"We believe she may be with Luke in the Barking or Forest Gate area.
"I would urge anyone who may have seen her or who knows where she is to get in contact with Essex Police on 101 as soon as possible."