A woman and her three dogs were killed on Saturday morning when they were hit by an Audi in Chelsea, west London .
The driver of the car. a 26-year-old man, has been arrested on suspicion of causing death by dangerous driving.
Officers were called to Cheyne Walk at 6.21am on Saturday to reports of a collision involving a pedestrian, animals and a vehicle. The car also demolished a traffic light before coming to a halt.
The 41-year-old woman was found dead at the scene and the dogs, all golden retrievers, died as a result of their injuries, the Metropolitan Police said.
The woman's next of kin have been informed, police said. The driver sustained minor injuries.
A crime scene cordon was in place on Cheyne Walk, a historic mansion-lined road that stretches along the River Thames, on Saturday afternoon.
Forensic officers were seen at the junction where Albert Bridge meets Chelsea Embankment, and a blue forensic tent was pitched on the road.
Former residents of the affluent street, where house prices average £3.5 million, include actors and writers such as Laurence Olivier, TS Eliot and Ian Fleming.
Most of the houses on the road were built in the early 18th century. Before the construction in the 19th century of Chelsea Embankment, which runs in front of it, the houses fronted the Thames.
A post on the Royal Borough of Kensington and Chelsea Twitter account said: "We're saddened to hear about the tragic collision on Cheyne Walk. Our thoughts are with the family and friends of the woman involved".
Greg Hands, the Conservative MP for Chelsea and Fulham, said: “Awful fatal car crash in Chelsea this morning. I suspect the (unnamed) victim was local, so I am available to help her family and those bereaved. My thoughts with all of them.”
Police launched an appeal for witnesses.
