15-year-old Katelan missing since July 23; last seen in Durham City, linked to several cities, police seek public help.

15-year-old Katelan from Newton Aycliffe, missing since July 23, has links to Manchester, Liverpool, Bolton, Preston, Burnley, Bradford, and Halifax. Last seen in Durham City, police are concerned for her welfare and have issued an appeal for public assistance. If you have any information, contact Durham Constabulary at 999.