Police say they are “very concerned” about a missing teenage girl who has links to Bolton, Burnley and Manchester.

The 15-year-old girl, who police have named as “Katelan”, went missing nearly a month ago in Durham on Tuesday, July 23.

Officers searching for the missing teenager say that as well as Bolton, Burnley and Manchester she also has Liverpool, Preston, Bradford, Halifax and Newton Aycliffe.

Detective Chief Inspector Simon Turner, from Durham Constabulary said: “It’s been 24 days since anyone has heard from Katelan and we are very concerned for her welfare.

“We believe Katelan may have travelled out of our area using public transport.

Police have released a new CCTV image of KatelanPolice have released a new CCTV image of Katelan (Image: Durham Constabulary)

“If you can help officers locate her, please contact Durham Constabulary on 999.”

DCI Turner and his colleagues have released a new CCTV image of Katelan in an effort to prompt people who may have seen her to come forward.

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Officers have also given further details about the most recent movements Katelan was seen making on CCTV footage.

They say the 15-year-old was seen on CCTV leaving Durham City bus station to board the X12 bus to Middlesbrough at 3.52pm on Tuesday, July 23.

She was then spotted on Linthorpe Road, in Middlesbrough, at 5.59pm, and again on Zetland Road at 6.26pm and finally on Corporation Road at 6.30pm that same day.