A man has been arrested in connection with a serious sexual assault which took place in Chesterfield town centre.
A 20-year-old woman was walking home in the Durrant Road area of the town at about 6am on Saturday, May 17 when the assault took place.
Detectives investigating the alleged offence arrested a 19-year-old man on Friday, May 30.
He has since been bailed pending further inquiries.
Police earlier released CCTV stills of three men they wanted to talk to about information they may have had about the incident.
As a result of the appeal, the three men have been traced and have helped police with their investigation.
Witnesses or anyone with information relating to the incident should call DC 2062 Mark Woodcock on 101. You can also call Crimestoppers, anonymously, on 0800 555 111.