Firefighters were alerted to the blaze off Stevens Road, Balby, at 10.45pm on Sunday.
The incident was reported to South Yorkshire Police.
Anyone with information should call 101.
Rubbish set alight in arson attack in Doncaster
A pile of rubbish found burning on waste ground in Doncaster was set alight in an arson attack.
By The Newsroom
Monday, 15th February 2016, 8:21 am
Updated Monday, 15th February 2016, 8:25 am