Police have released a CCTV image of two men they want to trace in connection with a serious sexual assault on a teenager in Mansfield.
The 17-year-old girl was attacked in an alleyway, which runs between Westgate and Clumber Street, on the night of 22 October.
One of the men in the images was wearing a black jacket with a large distinctive white pattern on the back.
Both men are believed to have East European accents, said police.
Anyone with information should contact the Nottinghamshire force.