Gustavo Petro claimed victory in the Colombian presidential election on June 19, becoming the country’s first leftist head of state.

Petro, a former guerilla fighter with the 19th of April Movement and mayor of Bogota, defeated businessman Rodolfo Hernandez with 50.4 percent of the vote, El Tiempo reported.

This video streamed live on Facebook shows Petro take the stage in front of supporters to give his victory speech. Credit: Gustavo Petro via Storyful