A pregnant woman and her unborn child have died after the car they were travelling in was hit by an unmarked police car.
The Metropolitan Police said an unmarked police vehicle was in collision with a member of the public’s car on the A20, near the junction with Kidbrooke Park Road.
The heavily pregnant woman and her unborn baby died as a result of their injuries.
London Ambulance Service, London Fire Brigade and London's Air Ambulance all attended the scene at 18:15 BST on Thursday.
The woman's next of kin have been informed, the Met said.
Det Ch Supt Trevor Lawry said: "My heart goes out to the woman's family and friends who have lost their loved ones in these tragic circumstances."
Two officers who were in the unmarked car were also taken to hospital following the collision, and have since been discharged.
Det Ch Supt Lawry said an investigation was under way and the incident had been referred to the police watchdog, the Independent Office of Police Conduct.
He added: "A road closure will remain at the scene today and I am grateful for the patience of the local motorists, who will need to use alternative routes."
