A 19-year-old woman was sexually assaulted in the street by a man thought to be older than 50 on Friday night.
The woman was walking across the V7 Saxon Street onto Lloyds, Coffee Hall, at around 11.10pm when the incident happened.
As she was walking she became aware of an unknown man behind her, who walked up close to her and then sexually assaulted her.
The woman screamed out and told the man she was going to call the police, at which point he walked away quickly up a redway that runs between Trubys Garden and Button Grove.
Police are now appealing for any witnesses to come forward.
The man is described as white, aged over 50, around 5ft 5ins tall with a medium build and short, greying hair. He was wearing reading glasses and dark coloured waist-length jacket that was zipped up.
PC Laura White said: “I am keen to speak to anyone who may have seen this man in the area and can provide us with any details of his movements, both before and after the assault.
“The woman was shaken by the incident, but thankfully didn’t sustain any physical injuries.
“This sort of offence is both rare and totally unacceptable and will not be tolerated by Thames Valley Police.”
If you have any information please contact PC White from Milton Keynes police station on 101.