At 09:23pm on Sunday night (16 May), firefighters were called to an incident on Nether Shire Lane in Sheffield. On arrival, crews found two cars on fire. Crews left the scene at 09:59pm and deemed the fire to have been started deliberately.

A caravan had been set alight at 09:48pm on Sunday night on Turnshaw Road in Ulley, Rotherham. Crews from Aston Park and Birley Moor were in attendance. They left the scene at 10:20pm and believed the fire to have been started deliberately.

A Skoda Hatchback had been set alight at 04:29am this morning (17 May). Firefighters from Tankersley and Barnsley attended the incident which was on Green Lane in Worsbrough, Barnsley. Crews left at 05:14am and deemed the fire to have been started deliberately.