The power outage, which began on Wednesday, was the latest to hit the island, which has long suffered from blackouts.

More than 400,000 Puerto Ricans left without water service as power company scrambles to restore critical facilities.

Power was restored to 98.8% of clients early Friday after an island-wide blackout hit Puerto earlier this week, authorities said. More than 1.45 million customers had electricity less than 48 hours after the outage hit,