A 68-year-old man from Peterborough has been arrested on suspicion of sexual assault and bailed to return to Thorpe Wood Police Station on Monday, November 21.
An incident took place at Sprignall bus stop in Bretton at around 5.30pm on Monday, October 10, when a woman in her 40s was approached by a man she did not know who sexually assaulted her.
The victim then got onto a bus and the man followed her.
He sat next to her and assaulted her again.
She then got off the bus at Oxclose bus stop and the man followed her until a friend met her.