Firefighters on P.E.I. were kept busy on Halloween night with about 30 fires across the province, at least two of which Fire Marshal Dave Rossiter described as potentially dangerous.

'There were oxygen-acetylene tanks, propane tanks that could have caused a lot of damage.' — Fire Marshal Dave Rossiter

Eight of the fires involved structures, including vacant homes, trailers, cottages and outbuildings.

"The unnerving part of last night's events was we had two fires right in the town of Souris that were in outbuildings right next to occupied structures," said Rossiter.

"We had one house that was damaged by the fire, by the neighbouring building, and the other fire … in that building there were oxygen-acetylene tanks, propane tanks that could have caused a lot of damage. Not to mention that could have possibly injured or even killed firefighters trying to extinguish that fire."

Fires were reported in Nail Pond, Tyne Valley, Souris, Haliburton, Mt. Pleasant, O'Leary Road and Kildare Cape.

All the fires are considered suspicious and have been turned over to the RCMP for investigation.