The M4 has been closed after a BMW smashed into a National Express coach.
Emergency services were called to a two-vehicle road traffic collision on the westbound carriageway near Swindon in the early hours of this morning (Sunday).
The incident, situated between junctions 14 and 15, involved a white BMW and a National Express coach.
The coach appears to have been impacted from behind by the car, which sustained significant front-end damage.
At least one casualty sustained serious injuries. Further details are unclear at this time.
Motorists were stuck in the closure for approximately three hours before being turned around and taken off at Junction 14.
In a statement, National Highways confirmed that their traffic officers are on scene “providing assistance with traffic management”.
They added that there is a “large oil spillage across the road surface from the coach involved”, and repair work may need to be carried out.
A spokesperson for Wiltshire Police said: “Please be aware that the M4 westbound between junctions 14 and 15 is currently closed following a serious collision.
“The road is likely to remain closed for several hours. Please find alternate routes.”
In an update, the force said that it is likely to remain shut until afternoon.
