A man is in hospital after being knocked down in a hit-and-run by a car that was being followed by police.
Officers in a marked patrol car spotted the dark vehicle driving erratically along Philip Lane in Haringey, north London at 9.45pm on Thursday.
But when they followed and tried to stop it the car sped off, mowing the man down.
A Scotland Yard spokesman said: "The male pedestrian, aged in his 60s, was taken to a central London hospital. His condition is not life threatening.
"The driver of the vehicle failed to stop after the collision and drove away from the scene."
Pictures posted on social media show at least five police vehicles at the scene, which was cordoned off, and the incident is being examined by specialist collision investigators.
The Met's Directorate of Professional Standards has also been informed and police are now trying to trace the driver.
It comes little more than 24 hours after 10-year-old Makayah McDermott and his aunt Rosie Cooper, 34, were killed when a stolen vehicle being chased by police ploughed into them in Penge, south-east London.
The pair were run over as they walked along Lennard Road, along with Makayah's twin older sisters Niyah and Yahla, who were trapped under the car and managed to crawl out when bystanders lifted it off them.
Another eight-year-old family member was also injured, but she and the twin girls have since been released from hospital.
Witnesses to the Haringey incident or anyone with information is asked to call police on 101.