Adam Pickup's father says his brother Ben has been out searching for the 17-year-old. He was last seen on Saturday. He says it is totally out of character for his son not to come home.
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Kerrie has the detail for the next few days
British Transport Police (BTP) in East Lancashire are warning children not to play near railways this summer.
Sunshine developing for Thursday afternoon and evening. Drier in the east on Friday, ahead of a showery weekend.