Police believe a missing 16-year-old could be in Preston.
Harry Ashby was last seen at an address in Birmingham around 6pm on March 15.
He is described as white, of slim build, with short, brown curly hair. He was last seen wearing a navy blue Adidas tracksuit and black Adidas trainers. He was carrying a grey Superdry jacket.
He also has links to the Blackpool area.
Officers are appealing for information leading to his whereabouts.
A Lancashire Police spokesman said: “We are concerned about Harry and would appeal to anyone who has seen him or knows where he might be to contact us.
“We would also urge Harry to get in touch if he sees this appeal to let us know he is safe.”
Anyone with information can call the police on 101 quoting log 0048 of March 16.