Jenniffer González Colón has been sworn in as Puerto Rico’s new governor as the island prepared for a normally ebullient ceremony overshadowed by widespread anger over a blackout that hit the U.S. territory days ago.

Puerto Rico experienced a massive power outage beginning at about 5:30 a.m. local time Tuesday morning. "While the cause of the outage is under investigation, preliminary findings point to a failure in an underground line," Luma said in a statement to Reuters.