A MAJOR motorway bridge has been forced to close, sparking “severe” delays for thousands of morning commuters.
Traffic is building on the M4 just before the Prince of Wales Bridge after an overnight diesel spillage caused chaos.
It happened at a breakdown at the westbound entry slip at Junction 22.
The incident has damaged the carriageway surface, leaving the road requiring resurfacing.
National Highways say it is to remain closed throughout the morning.
