Fire crews in and around Doncaster tackled a spate of vehicles fires.
The first was late on Friday, when a Peugeot 306 was set alight just off the A630 at Conisbrough, while a Ford Fiesta caught fire accidentally on the A1 south-bound carriageway at Barnsdale Bar on Saturday afternoon.
Arsonists are being blamed after a Ford Transit found ablaze in Lodge Lane, Kirk Bramwith, on Saturday night.
Thorne crews were called to Moorends Lane on Sunday where a Seat car was found engulfed in flames. A spokesman said it was deliberate.