Cars set alight in Sheffield, Rotherham and Barnsley
Firefighters called out to a blaze in Barnsley found an Audi Q7 had been set alight.
The blaze in East Avenue, Wombwell, was discovered at 1.50am today.
Over the weekend firefighters also dealt with a Vauxhall people carrier torched in Lodge Lane, Dinnington, Rotherham and a Fiat set alight in South Street, Park Hill, Sheffield.
Anyone with information should call South Yorkshire Police on 101.