The A30 Hayle Bypass in Cornwall is closed in both directions and there is queueing traffic due to an accident.
That's between Loggans Moor Roundabout and St Erth Roundabout.
All three emergency services responded to the crash. Cornwall Fire and Rescue Service says one appliance from Hayle and the Rescue Tender from Tolvaddon attended the incident.
It involved one vehicle and there were no persons trapped. Crews made the vehicle safe.