A man had a packet of cigarettes taken out of his hand after being approached by a number of teenagers.
Police are appealing for information. It happened at Abbot Hall Park on Thursday (November 26) at about 6.45pm.
A spokesperson from Cumbria Police said: "The teenage boy suspected of taking the cigarettes is described as white, about 16, 5ft 6ins tall, with dark brown hair with a fringe.
"He was wearing a silver hoody with a patterned front pocket and dark trousers."
Anyone with information can call police on 101 – or Crimestoppers anonymously on 0800 555 111, referring to incident 175 of November 26.