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Two people have died following a crash.
Two passengers, a man and a woman in their 20s, were pronounced dead at the scene following the collision near Dartford.
The driver was taken to a London hospital with serious injuries.
It happened at around 10.30am when a black BMW M3 was travelling on the A2 towards the slip road for Dartford Heath, when it left the carriageway and overturned.
Officers were quickly on the scene along with South East Coast Ambulance Service and the air ambulance.
Kent Police's Serious Collision Investigation Unit is appealing to anyone who saw what happened, or has relevant dashcam footage, to come forward.
In particular, investigators would like to speak to anybody who saw the vehicle travelling along the coastbound carriageway of the A2 from Bexley towards Dartford Heath prior to the collision.
Anyone with information should call the SCIU appeal line on 01622 798538, or email sciu.td@kent.pnn.police.uk, quoting reference RY/MS/111/22.
Drivers with dashcam that may assist can upload the footage using this link here.
The road was closed all day, but both carriageways had reopened by 9.30pm.
The tragedy comes just hours after another young man died early this morning, after being hit by a lorry.
Police and ambulance crews were called to the A228 between Malling Road and Rocfort Road in Snodland just after 5.30am.
A yellow DAF articulated tanker was involved in the collision with a pedestrian on the Rochester-bound carriageway.