BERLIN (AP) — A British environmental activist has sparked anger in Germany after appearing to downplay the Holocaust in an interview.

Roger Hallam, who co-founded the activist group Extinction Rebellion that campaigns against climate change, told German newspaper Die Zeit that the Nazis’ murder of 6 million Jews was merely one of many genocides.

In extracts from the interview released by Die Zeit on Wednesday, Hallam is quoted describing the Holocaust as “just another (expletive) in human history.”

The comments drew a swift rebuke from German Foreign Minister Heiko Maas and the co-leader of Germany’s environmentalist Green Party Robert Habeck.

It was also condemned by the German and British branches of Extinction Rebellion.