On a stage where many world leaders spotlight their successes, Canadian Prime Minister Justin Trudeau told the U.N. General Assembly on Thursday about one of his nation’s historic failures: the injustices long faced by its native people.

“For indigenous peoples in Canada, the experience was mostly one of humiliation, neglect and abuse” under successive governments that didn’t respect their rights, he said.

“We are greatly ashamed,” Trudeau said. “And for far too many indigenous people, that lack of respect for rights still persists today.”