Four casualties injured in a crash which closed the M20 for some nine hours have all been discharged from hospital.

Emergency crews were first called to the coastbound carriageway of the motorway, between junctions 4 and 5, just after 1am yesterday.

A closure was then put in place by police, sparking chaos on the roads throughout the morning rush hour.

The carriageway finally reopened at around 10.30am.

One person was taken to a London hospital for treatment to injuries described as serious, while three others were taken to Tunbridge Wells Hospital for medical attention.

They have all since been discharged.