A 17-year-old was sexually assaulted on a bus by a man who got on outside McDonalds in Milton Keynes.
The attack happened on Wednesday, after the teenager boarded the X5 Stagecoach in Buckingham, which was bound for Bedford.
At 1.37pm a man boarded the bus at the bus stop outside the McDonalds inthecentre:mk and started speaking to the victim for about 30 minutes, and then moved to sit next to her.
He then touched her inappropriately and asked her questions of a sexual nature. She got off the bus at Bedford bus station, and the man followed her off, but is not thought to have followed her after that.
Thames Valley Police has released CCTV footage of the man who they would like to speak to in connection with the assault.
He is black, in his late twenties, of medium build and around 5ft 8ins, with a tidy black beard. He is shown wearing a black leather jacket, a blue V neck jumper with buttons at the top, cream chinos, and brown leather shoes.
If you recognise the man from the CCTV still or have any information about the incident, call police on 101 or Crimestoppers, anonymously, on 0800 555 111.