Detectives investigating a serious collision on the A406 are appealing for witnesses or anyone with dash cam footage to come forward. 

Police were called at 16:52hrs on Tuesday, 26 November to reports of a collision on the A406 at Palmerston Road, N22.

Officers, London’s Air Ambulance and the London Ambulance Service (LAS) attended.

At the scene, an Audi A4 had been in collision with a male pedestrian.

The injured man, aged in his 40s, was taken by LAS to an east London hospital where he remains in a critical condition.

The driver of the Audi stopped at the scene and is assisting with police enquiries.

There have been no arrests.

The A406 was reopened to traffic at 23:03hrs.

Anyone who witnessed the collision should call the Met’s Serious Collision Investigation Unit on 020 8597 4874 or via 101 quoting reference 5603/26NOV, or Tweet @MetCC.