Fire crews tackled a chip fryer fire at a fish and chip shop in Wath Road, Mexborough, at 7pm on Thursday night.
In Sheffield, fire crews were called to a car arson in Claywheels Lane, Wadsley Bridge, just after midnight in the early hours of yesterday.
A Ford Focus had been set alight.
They were also called to a blazing Vauxhall Astra in Medlock Road, Handsworth, Sheffield at 12.30am on Friday morning.
The vehicle had been torched deliberately.