Force says unmarked vehicle collided with car carrying 38-year-old woman in Eltham, south-east London

A pregnant woman and her unborn child have died following a collision with a police car, the Metropolitan police have said.

The force said an unmarked vehicle collided with a car on the A20 in Eltham, south-east London, at about 6.15pm on Thursday near the junction with Kidbrooke Park Road.