WILTSHIRE Police have begun an investigation after an 18-year-old woman was the victim of a serious sexual assault in Swindon late on Saturday evening.

The woman, who is from the Swindon area, told officers she was walking through the underpass between Station Road and the Oasis leisure centre when the assault took place.

Police were alerted just after midnight and the underpass was sealed off for several hours to allow scenes of crime officers to search for evidence.

Det Insp Mark Power, who is leading the investigation, said: “We are investigating a serious sexual assault which  occurred between 10pm and midnight in the underpass.

“I am very keen to hear from anyone who was near to the underpass or who walked through the underpass during those times.

Anyone with information is asked to call Wiltshire Police on 101.