Firefighters in South Yorkshire were called out to a number of small incidents across Doncaster and the Dearne Valley this weekend.
At 8.20am on Saturday morning they attended a skip fire in Wheatley Lane, Denaby which is believed to have been started deliberately.
They were then called out to a grassland fire in Oldham Road, Balby at around 5pm.
A South Yorkshire fire and rescue said the fire is believed to have been started deliberately.
At around 7.55pm yesterday evening they were also called out to an industrial wheelie bin fire in Mill Street, Armthorpe, which is being treated as arson by fire crews.