The incident in southeast London is being investigated by the Independent Office for Police Conduct.
A man and a woman in their 70s have died after a van being chased by police crashed into their car in southeast London.
Officers in a patrol car had flagged for a Ford Transit van to stop after they noticed it being driven “erratically at speed” at about 12am.
However, police said the vehicle failed to stop and at about 12.06am was involved in a crash with a Citroen C3 in Eltham.
Paramedics and firefighters were called to the crash but despite their efforts, the man and woman in the Citroen were pronounced dead at the scene.
Metropolitan Police said their next of kin have been informed.