Neighbourhood Watch has put out the following message to people in Llangollen:
"Please be aware that thieves are operating in your area. On Thursday 23rd May 2013 at approximately 15.00hrs an unknown male was sighted at Dinas Bran School stealing a mountain bike.
"The mountain bike is described as a lime green “Identity” mountain bike with, front suspension and disc brakes.
"The male is described as approximately 18 to 25 years of age, white appearance, medium to stocky build with stubble. He was wearing a grey hoody and dark jogging bottom with white trainers.
"If you see a person or a bike matching the above description call North Wales Police on 101 quoting reference P079807."