Update on October 24: This man has now been found, and officers thank the public for their assistance.
Lincolnshire Police are looking for a man after an assault in a taxi in Lincoln.
The incident happened in the early hours of August 31 in Lincoln City Centre. A 26-year-old woman was in a taxi with a male when she was assaulted.
Enquiries have been made by officers to locate the offender, but have not yet been successful.
Police have issued a photo of a man they would like to talk to in connection with the investigation because he may have useful information relevant to the enquiry.
If anyone who knows the man pictured, contact Lincolnshire Police on 101, quoting incident number 117 of 31/08/2014.