Residents in Grantham have been told to keep their windows and doors shut following an industrial fire in Grantham.
Five fire crews have been tackling the blaze at Fruehauf in Houghton Road, Grantham,which now appears to be out.
Police are also at the scene. No roads have been closed as a result.
Nearby residents report hearing an explosion, while the smoke has been seen from Ancaster.
The blaze is thought to include oil or chemical barrels.