The A14 was closed westbound at Cambridge this afternoon after a horsebox caught fire.
The road was closed at junction 32, the Histon interchange with congestion back to Stow Cum Quy.
One horse and the driver were out of the vehicle on the arrival of the fire service, who have now extinguished the blaze.
One lane is now open but long delays remain.
Motorists are advised to avoid the area.
More here as we have it...