A heavily pregnant woman and her unborn baby have died following a collision with an unmarked police car in south-east London.

The incident happened on the A20, near the junction with Kidbrooke Park Road, Eltham, at around 6.15pm on Thursday (October 17) according to the Metropolitan Police.

It is unclear whether the police car was responding to an emergency at the time, and the Met said this question will form part of its investigation.

London Ambulance Service, London Fire Brigade and London’s Air Ambulance all attended the scene. The 38-year-old woman and her unborn baby died as a result of their injuries. The next of kin have been informed, the Met said.

A heavily pregnant woman and her baby have died following a collision with an unmarked police car in south-east London. | Getty

Detective Chief Superintendent Trevor Lawry, in charge of policing in Greenwich, said: “My heart goes out to the woman’s family and friends who have lost their loved ones in these tragic circumstances.

“An investigation into the circumstances of this collision is under way by the Independent Office for Police Conduct and we will assist with their inquiries in any way we can. 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.”

Two officers who were in the unmarked car were also taken to hospital following the collision. They have since been discharged.

Eltham: Heavily pregnant woman and unborn baby die after crash with unmarked police car