A young woman has died after she was hit by a marked police car responding to a 999 emergency call.
Witnesses said the 25-year-old pedestrian was crossing the road when she was struck and thrown into the air at about 11.20pm on Wednesday.
When the police car came to a stop, two officers jumped out and tried to save the woman, a witness told the Mirror.
Paramedics soon arrived and attempted to resuscitate her before she was pronounced dead at the scene in Lambeth, south-west London.
The Metropolitan Police said the incident had been referred to the Directorate of Professional Standards and the Independent Office for Police Conduct (IOPC), which is now carrying out an independent investigation.
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A witness named David said he was smoking on the balcony of his flat when he noticed a police car approaching with its lights and sirens activated.
He told the Mirror: “The police vehicle was heading towards Brixton with sirens on and travelling at a very high speed, no traffic.
“There is a small bend around the corner and I saw the girl starting to cross and my heart dropped.
“She froze on the spot as the police car completely took her out and sent her flying.
“Both the driver and passenger – policemen – instantly got out and began reviving her. She was unresponsive on the floor.”
David added: “They were trying to bring her back, many neighbours called the ambulance straight away. It was heartbreaking.”
He said more police vehicles soon arrived, followed by an ambulance.
David added: “Once the paramedics arrived they carried on trying to bring her back.”
Cameron, 20, who lives nearby told the Mirror he returned home as paramedics tried to resuscitate the woman in the road, which was blocked by police cars and an ambulance.
A police car with a “smashed” windscreen was at the scene, he said.
Cameron said: “You could feel how tense everyone was and the road was dead silent. It was especially upsetting knowing she was a young woman hit by a police car of all things.”
When he came back outside minutes later the woman’s body had been covered, and the ambulance left without its siren on.
The man said he spoke to witnesses at the scene, and they told him the woman was in the road when she was hit and she was thrown into the air.
A spokesperson for the Met Police said in a statement: “Officers were called at approximately 11.20pm on Wednesday 9 June to Stockwell Road, SW9 to a collision involving a marked police vehicle on an emergency call and a female pedestrian.
“A 25-year-old woman was treated by paramedics from the London Ambulance Service, and London’s Air Ambulance.
“Despite the efforts of emergency services, the woman sadly died at the scene. Next of kin have been informed.
“Cordons remain at the location and traffic is being diverted.
“Road closures are in place in a number of surrounding streets, including Brixton Road, Stockwell Road and Landor Road.
“The incident, as is usual in such situations, has been notified to the Directorate of Professional Standards.
“It has also been referred to the Independent Office for Police Conduct (IOPC), which is now carrying out an independent investigation.”
An IOPC spokesperson said: “We have begun an independent investigation into the circumstances of a police collision in south London in which, sadly, a 25-year-old woman died.
“We were notified by the Metropolitan Police that at around 11.20pm on Wednesday 9 June in Stockwell Road, London SW9, a police vehicle on an emergency call was in collision with the female pedestrian.
“Despite the efforts of the London Ambulance Service, she died at the scene.
“Our investigators attended the scene of the collision and the post-incident procedures where the officers involved provided their initial accounts.
“Our thoughts are with the woman’s family and all of those affected.”