Fire crews were called to a car blaze near Great Blakenham which caused a diesel spill.
Suffolk Fire and Rescue Service was called to Henley Road, in Akenham, just north of Ipswich, around 11.10am.
A vehicle was found “well alight” on a roadside verge.
Two sets of breathing apparatus were used to get close to the fire, with the blaze extinguished by hose reels jets.
A spokesman for the fire service said Suffolk police officers were needed to control traffic.
The Environment Agency was also informed as a quantity of diesel had entered a roadside drain.
A spokeswoman for the EA said highways officers from Suffolk County Council cleared up the spill.
The fire was under control by around 11.40am, the fire spokesman added.
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