One person has been taken to hospital after a crash between three lorries on the M25.
Hertfordshire Constabulary confirmed the M25 has been closed between Junction 21A and Junction 23 after three lorries collided just after 2pm.
The fire service released two people from their vehicles using cutting equipment and Andrew Dawson, spokesman for Hertfordshire Constabulary, said one has been taken to hospital.
The crash is believed to have happened just after the exit slip-road for Junction 21A on the anti-clockwise carriageway.
The motorway has been closed in both directions and the air ambulance was called.
Initial reports suggested there was also a tanker involved, though both the fire service and the police have not confirmed this.
Simon Hoggett, spokesman for Hertfordshire Fire and Rescue, said two people were trapped after the collision.
He said: "Two people were trapped and there were no hazardous materials on the road.
Paramedics are at the scene.
M25 closed in both directions following collision between juncs 21A and 23 expect delays. If possible find alternative route.
— Herts Police (@HertsPolice) May 27, 2015
Hollie Cowan, spokesman for the East of England Ambulance Service, said: "An ambulance, HEMS Air ambulance, a rapid response car and an ambulance officer are currently at the scene."
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