Ottawa police were called to help control a raucous crowd of protesters that gathered on Parliament Hill in downtown Ottawa Monday to oppose the construction of a new oil pipeline.



As many as 100 students were ultimately arrested as a result of the protest. Organizers of the event are calling the protest “the largest act of youth-led climate civil disobedience in Canadian history.”



Police were unable to confirm exactly how many protesters were arrested or the number that may still be in police custody.

As part of the protest, the students marched from the University of Ottawa to Parliament Hill where they were arrested trying to cross police barricades while pulling an oversized chalkboard that contained a message for the prime minister, urging him to halt the construction of new oil pipelines in Canada.