Police are appealing for information after a woman reported being sexual assaulted in Bury St Edmunds on Saturday night.
The incident is believed to have occurred between 7.15pm and 7.45pm on Saturday April 5.
The victim was walking along Churchgate Street when she was forced into an alleyway by a man, who then assaulted her.
Officers are keen to speak to anyone who was in the area of Churchgate Street between the above times.
Police are asking for anyone who may have information in relation to the incident to contact Bury St Edmunds CID on 101 or Crimestoppers on 0800 555 111.