Traffic continues to build on the M4 westbound between Junction 17 Chippenham (Leigh Delemere) and 18 for Bath following an earlier collision

Highways England have tweeted to say there is currently around a hour delay with over five miles of slow moving traffic.

Traffic cameras show the huge tailbacks and emergency services are currently at the scene

People travelling in Wiltshire or trying to get into Bristol will be affected by the delays.