A large fire at an electrical substation for Puerto Rico's new electricity provider, Luma Energy, knocked out power for hundreds of thousands of the island's residents Thursday.
At the height of the blackout, nearly 800,000 customers were without power, according to Luma. By midnight, roughly 60,000 customers were still in the dark.
"The fire caused major blackouts across the entire island. The situation is under assessment and work is being done to restore the system," LUMA Energy tweeted.
The fire and blackout were not the only crises facing Luma on Thursday.