POLICE are investigating a serious sex attack on a teenage girl in a park.
The 15-year-old was assaulted at the swings in Shelf Park at 4.55pm yesterday.
The suspect is described as a white man, aged between 18 and 20, 5ft 10ins tall and fat.
He was wearing a white top, light blue three-quarter length trousers and flip flops.
Any witnesses are asked to contact Calderdale CID on 0845 6060606.