Thames Valley Police is appealing for witnesses to an assault in Bracknell.
The victim, a woman in her thirties, was walking near the Mount Hermon parade of shops, in Ralphs Ride near Bracknell when she was assaulted by a man at around 1.30am on Saturday 29 September.
She was punched several times in the head and face by the man.
When the victim managed to flee the attack the offender returned to his vehicle which was a grey Suzuki and left the scene.
The woman was then assisted by a taxi driver who stopped to help her and gave her a lift.
The victim suffered bruising to the head and face as a result of the incident.
Thames Valley Police would like to trace the taxi driver as a potential witness, as he may have important information to help with the investigation, along with any other people who may have seen this incident.
Investigating officer Detective Constable Ross Eyre, based at Windsor police station, said: “This was very distressing for the woman involved and an investigation is ongoing.
“It is believed to be an isolated incident.
“The taxi driver was a Good Samaritan who stopped to help the victim and made sure she was safe.
“We would like to speak to this man as a potential witness as he may have vital information to help with the investigation.
“I am also appealing to anyone else who may have witnessed this incident or have any information about it please contact police.”
If you have any information, please call the 24-hour Thames Valley Police enquiry centre on 101 quoting reference number 43180297372 or by using our online form.
Alternatively you can contact Crimestoppers anonymously on 0800 555 111.
Note to editors
A 32-year-old man from Leicester was arrested on suspicion of actual bodily harm, he has been released on police bail until 22 October.