Traffic is now stopped on the M4 between J16 and J17 both ways due to a lorry fire.
Fire services are at the scene dealing with the incident.
The #M4 is now BLOCKED both ways between J16 and J17 while the fire service continue to extinguish the vehicle fire. Delays are building. pic.twitter.com/V8HYNjuSEU
— Highways England (@HighwaysSWEST) July 19, 2017
There is no estimated re-open time as yet.