The governor of Puerto Rico says power is slowly being restored nearly 24 hours after a blackout swept across the island.
Gov. Alejandro Garcia Padilla said Thursday that about half of power customers should have electricity within hours.
The director of the Puerto Rico Electric Power Authority, meanwhile, says the entire system should be back to normal on Friday.
Power went out abruptly Wednesday afternoon following a fire at a power plant in the southern town of Salinas. The cause of the fire is not yet known.
Nearly everyone on the island of 3.5 million people lost power.