A teenager was beaten up and robbed of his mobile phone as he walked through Ilkeston town centre, police have said.
Shortly before 12midnight on Saturday, April 6, the 16-year-old boy was walking along Bath Street, at the junction of Chapel Street, when two men asked him for a cigarette.
He said he did not smoke and carried on walking.
Moments later, as he passed Heron Frozen Foods, he heard footsteps behind him and was hit on the back of the head.
He was pulled to the floor and kicked several time by a group of five or six men.
They searched his pockets and took his mobile phone.
The victim suffered swelling and bruising to his face and body.
Police have asked anyone with information to call Operation Everest, a specialist team of detectives who investigate robberies, on 101 or Crimestoppers on 0800 555 111.