On Sunday, Canadian Prime Minister Justin Trudeau visited the Aushcwitz Birkenau in Poland, formerly the location of the infamous Nazi death camp.

Trudeau was accompanied on the tour by Nate Leipciger, a survivor of the camps.

When Trudeau got to the monument of victims of the Auschwitz II camp, he lit a candle in memory of the victims.

“Tolerance is never enough: humanity must learn to love our differences…. We shall never forget,” Trudeau wrote in the memorial book of the museum.