A missing 15-year-old boy could be in the Ermine estate area of Lincoln, police believe.
Ashton Percival was last seen in the Gainsborough area and was reported missing on December 7.
Police continued investigations into his disappearance weeks after a previous search appeal was launched for him.
He was first reported missing three months ago and an appeal from Lincolnshire Police came two weeks later.
He is around 5 feet 7 inches tall and of a very slim build, with police revealing that he also has links to Pontefract in West Yorkshire.
Anyone who has seen Ashton is being urged to call 101 and quote incident reference number 106131.