There's been a rash of suspicious fires in the west end of the Rainy River district.
One of them at the Pineview Mennonite Church in Chapple Township on April 18 completely destroyed the building.
A vacant home that had been converted to a hunting camp on Tait Road in Chapple township was also torched five days earlier.
Another home on Marr Road in Morley Township was found Thursday with burn marks on an exterior wall.
OPP and the Ontario Fire Marshall's Office are investigating.