A lorry containing jars of pasta sauce has caught fire on the A1, causing tailbacks of up to eight miles between Stamford and Peterborough.
The fire happened on the northbound carriageway at the A606 Empingham Road turn-off.
Fire crews have extinguished the blaze, but recovery may continue to take some time.
Motorists should continue to avoid the area.
Stef Douglas, community safety manager for Leicestershire Fire and Rescue Service, posted on Twitter: “There may be a pasta sauce shortage in Oakham this week. A1 n/b still closed. Appreciate your patience.”