A woman in her 30s has been sexually assaulted by a taxi driver after he followed her inside a house in Thatcham.
Police say it happened at around 2am on Sunday when the woman got into a taxi with some other unknown passengers.
These were dropped off in The Broadway, before the woman was taken to a house on the outskirts of the town.
She went inside to get some money to pay the driver, who followed her inside and placed his hand up her skirt and into her underwear.
The woman shouted at him to get out and he left.
It is believed that the taxi had six seats. There is currently no description available of the driver.
Specialist investigator Tracy Cole said: “We would urge anyone who was in a taxi matching this description in the early hours of Sunday morning to please come forward, as they may be able to help us identify the taxi company.
“We’d also like to speak to anyone who may have been standing outside of the Slug and Lettuce or Document House (in Newbury) at around 2am on Sunday, who may also be able to help with the investigation.
“Any information, no matter how insignificant it may seem, may assist us in bringing this offender to justice.”
Call police on 101 with information, quoting reference number 43170049915.