Grassland, a skip and an outbuilding went up in flames during a spate of arson attacks overnight.
Yobs set fire to 30 square metres of grassland off Kilnhurst Road in Rawmarsh at 7pm.
Cudworth firefighters spent 30 minutes tackling the blaze.
An hour later arsonists set fire to a pile of litter in Crossfield Lane, Skellow.
A crew from Adwick Fire Station put the blaze out within 10 minutes.
A skip went up in flames in Deightonby Street, Thurnscoe, at 10pm.
Adwick firefighters dealt with the incident.
Yobs set fire to an outhouse outside a home in Cooperchie Street, Goldthorpe, at 5.30am this morning.
Dearne Valley firefighters extinguished the blaze.