Police need dashcam footage of a M25 crash involving two lorries, three cars and a coach full of children.
The crash occurred around 4:40pm on June 15 at junction 4 outside Swanley and sent four people, including one 11-year-old boy, to hospital.
Two lorry drivers, a man in his 60s and a man in his 30s, and a woman in her 30s, were also taken to hospital.
Now Kent Police are investigating the crash and are appealing for any witnesses who may have seen the vehicles immediately before or during the crash.
Police are particularly interested in anyone who has dashcam footage of the crash.
Witnesses can call the appeal line on 01622 798538 quoting CF/134/17, or they can email sciu.td@kent.pnn.police.uk.
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