Police have begun a rape enquiry in Taunton after a 22-year-old woman was attacked in the town at the weekend.
The woman is believed to have gone with a man to the Sturms Sports Bar on Hammett Street and on to Remedies Bar.
As the pair passed the Esporta gym at about midnight the woman was dragged behind the gymnasium and raped, said a police spokesman.
The offender is described as a white man, in his early 20s, of thin build and between 5ft 9ins and 5ft 11ins.
The man had short dark hair and brown eyes and was wearing a white short-sleeved shirt and black trousers and shoes.
Police want to speak to an elderly man and a woman who spoke to the victim near the Salvation Army building on South Street shortly after the attack at about 0050 BST.