The M2 in Kent is closed westbound between Junction 6 and Junction 5 due to a single vehicle road traffic collision.
Kent Police and emergency services were called just before 1am on Monday morning.
Specialist collision scene investigators are currently in attendance and are being assisted by Highways England Traffic Officers.
A large amount of barrier has also been damaged during the collision.
The road closure is likely to remain in place for a number of hours and may affect early morning rush hour traffic. A diversion route has been put in place