Doncaster firefighters were called out to a deliberate grass fire at 7:05pm on Everingham Road, Cantley, Doncaster. The crew left the scene at 7:20pm.
Firefighters from Askern station attended a deliberate fire involving rubbish on Norton Common Lane, Norton, Doncaster at 9:45pm. The crew came away at 10:45pm.
Cudworth firefighters were called out to a deliberate rubbish fire at 11:25pm on Barnsley Road, Darfield, Barnsley. The crew left the scene at 12am.
A car was deliberately set on fire at 1:05am on High Street, Worsbrough Bridge, Barnsley. Firefighters from Barnsley station attended the incident. They left at 1:40am.
Three fire crews from Parkway, Birley Moor and Aston stations were called out to a small fire in a stairwell at 3:20am on Water Slacks Close, Sheffield. The crew left the scene at 4:10am.
Parkway firefighters were called out to a deliberate rubbish fire at 5:35am on Tinsley Park Road, Sheffield. The crew came away at 6am.