The indigenous genocide in the former British Colony of Canada keeps revealing as 182 more unmarked graves were found on Wednesday.

The graves were found in St Eugene's Mission School near Cranbrook, British Columbia. They are believed to be the remains of members of bands of the Ktunaxa nation, which includes the Lower Kootenay, and neighboring indigenous communities.

The school was operated by the Catholic Church on the behalf of the Federal Government from 1917 to the early 1970s.

The evidence of genocides has sparked anger in the indigenous communities and churches have gone up in flames.

In the early morning, two churches went up in flames amid growing calls for a papal apology over abuses at Canada's residential schools.

The blazes brought to eight the number of churches across Canada destroyed or damaged by suspicious fires, most of them in indigenous communities, in recent days.

At a news conference, Prime Minister Justin Trudeau said these "horrific discoveries" have forced Canadians "to reflect on the historic and ongoing injustices that Indigenous peoples have faced."