Woman pinned to ground in attack in Milton Keynes
A woman was knocked over and pinned to the ground in an attack in Milton Keynes.
She was walking along St Leger Drive, Great Linford, at about 0200 BST on Sunday when a man jumped out from an alleyway, police said.
He held her to the ground, told her to be quiet and hit her on the head. He then ran off.
Police want to trace the driver of a car that passed by during the incident, possibly disturbing the attacker.
The victim has told police she was struggling on the ground with him when she heard the vehicle.
The offender, who is described as 5ft 9in (1.75m), of stocky, fat build with a clean shaven, round face, had appeared from an alleyway leading from St Leger Drive to Kindleton.
He was dressed all in black and was wearing a black hat.
Det Con John Swallow said: "It is unclear at this stage what the offender's motives were.
"No property was stolen from the victim and after struggling with her the offender simply got up and ran off.
"The victim also remembers seeing a man dressed in similar clothing to the offender pass by her on a bicycle shortly before the attack.
"This may be someone totally unconnected and if so we would ask them to contact us."