Two Catholic churches on indigenous land in western Canada burnt to the ground on Saturday, less than a week after two other nearby churches were set ablaze.

The Royal Canadian Mounted Police are investigating the fires. RCMP Sergeant Jason Bayda said, “The investigations into the previous fires and these two new fires are ongoing with no arrests or charges.”

On Monday, firefighters were able to put out a fire at a church in the neighbouring province of Alberta before significant damage was done. Authorities say the fire was deliberately set.