Firefighters dealt with a series of car fires started by arsonists over an eight hour period.
They were called out to a vehicle set alight on Stone Lane, Woodhouse, Sheffield, at 8.15pm yesterday and found a Morris Minor engulfed in flames on Mill Lane, Treeton, Rotherham, an hour later.
Crews were called out at 4.15am today to deal with a Peugoet 206 fired in Kings Road, Wombwell, Barnsley.
South Yorkshire Police were alerted to the blazes.
Anyone with information should call 101.