DETECTIVES are investigating a serious sexual assault on a woman near York.

Officers have today cordoned off a lay by off the A1079 in Dunnington where the incident allegedly took place.

A spokesman for North Yorkshire Police said the attack allegedly took place last Friday, but could not confirm when it was reported to police.

He said: "We are investigating a report of a serious sexual assault, which occurred in the early hours of Friday, July 3, at a layby in the Dunnington area of York.

"Enquiries are ongoing and the victim, a woman in her forties, is being supported by specially trained officers."

If you have any information which could assist police, please phone 101, or Crimestoppers, anonymously, on 0800 555111.