By Rachel Hagan Fears are growing for the well-being of a 15-year-old boy who was last seen over a week ago, with police saying they are “concerned.” Adnan Ahmed, who sometimes also goes by the name Asif Khan, was last seen leaving Blackburn Central High School, in his school uniform at around 3 pm on Thursday 21 December. His uniform includes a white shirt, purple tie and black blazer and he is described as 5ft 11in and of slim build with dark curly hair. The police say they have investigated several lines of enquiry from around the time Adnan went missing. This was before his image had been …