The A1064 is blocked in both directions at Billockby in Norfolk after a car went into a ditch.
The accident happened on the Billocky Bends, between Church Lane and Marsh Road. Emergency crews are at the scene.
Abellio, who run the Greater Anglia rail line, has been named Train Operator of the Year at the annual national Rail Business Awards.
Greater Anglia train operator Abellio says it's made real steps in customer service and punctuality in its first year in charge.
Greater Anglia have apologised for the delays that have disrupted services today