Miles of congestion have been reported near the Tamar Bridge after a coach breakdown.
National Highways said it happened at about 17:15 BST on the westbound A38 near Saltash and led to the closure of one lane of the dual carriageway, said National Highways.
It said about four miles (6.4km) of traffic queues had built up near the Tamar Bridge while recovery work continued with reports of one-hour delays in the area.
National Highways said on X shortly before 18:20 said all lanes had reopened but traffic delays of 30 minutes remained.