Democratic presidential candidate Pete Buttigieg was interrupted at a campaign rally in New Hampshire on Friday by climate activists angered by the former South Bend, Indiana mayor’s lackluster approach to the climate crisis and his campaign’s continued reliance on fossil fuel money.

“I can’t make out your song, but we definitely want the same things,” Buttigieg told the group of climate action advocates who broke out in song and held up signs reading “Pete Takes Money From Fossil Fuel Billionaires” during the candidate’s remarks at the event in Concord.

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Buttigieg countered the protest and criticism by tell the crowd there was some “inaccurate information going up here” and noting that he “took the fossil fuel pledge” and is “determined to bring about solutions on climate change.”

While Buttigieg has, in fact, signed the “No Fossil Fuel Money” pledge, critics of the candidate point out that his continued openness to PACs and high-dollar bundlers means it’s impossible to know exactly which individuals and what kind of corporate interests are backing and funding his campaign.