UPDATE: The road reopened late on Tuesday, April 19.
The A37 near Yeovil has been closed following a road crash this morning, according to eyewitness reports.
The road is closed between Ilchester and Yeovil Marsh following a crash near the Ilchester roundabout.
An eyewitness said a van and a lorry were involved in the crash. Ambulance, police and fire crews are reported to be on the scene.
Traffic approaching the crash is being turned around. Motorists should find an alternative route.