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The A20 is now fully open after a serious crash earlier today.
Police were called to the accident on the coastbound carriagement at Swanley - between the A223 turn-off and the M25 at junction 3.
Firefighters were called out after reports victims were trapped in the crash, which involved a white Mercedes Sprinter and a greenish-blue Fiat Punto.
Four people were taken to hospital - two have been released from hospital with minor injuries and two others remain in hospital with non-life threatening injuries.
The A20 coastbound between the A223 turn-off and the M25 at junction 3 was closed for the serious collision investigation team to carry out an investigation of the scene. But it later re-opened.
Witnesses to the collision should call the Serious Collision Investigation Unit Appeal Line on 01622 798538.