A 14-year-old has been robbed by two 6ft youths in Stanhope Park, Darlington.
One asked the boy for cigarettes then searched his victim's pockets and stole a wallet containing various cards, including a cash card.
He then punched the youngster in the face.
The attacker is described as white, 6ft, of medium build, with short hair. He was wearing a light shirt and navy blue tracksuit bottoms.
Detective Sergeant Alec Francis, of Darlington police, urged witnesses to the attack, which happened at the Vane Terrace end of the park, to contact the police.
Anyone who has any information is asked to contact Darlington police on (01325) 467681, or Crimestoppers on 0800 555111.
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