The Crown Prosecution Service said the charges were dropped following the withdrawal of key witnesses. “We have a duty to keep cases under continuous review,” they said. “In this case a combination of the withdrawal of key witnesses and new material that came to light meant there was no longer a realistic prospect of conviction. In these circumstances, we are under a duty to stop the case.

“We have explained our decision to all parties. We would always encourage any potential victims to come forward and report to police and we will prosecute wherever our legal test is met.”

Detective Chief Superintendent Michaela Kerr added: “I would like to use this opportunity to reiterate the force’s commitment to investigating allegations of violence against women and girls and supporting those affected, regardless of their circumstances, throughout what can be a hard and upsetting time for them.”

Charges of attempted rape and assault against Mason Greenwood have been dropped