>> Just months after Puerto Rico's power grid was knocked out by Hurricane Maria, over half of the islands 3.4 million residents are again waking up without electricity. An outage persists Thursday after a powerline failure in the south cut electricity to almost all Puerto Ricans. The Puerto Rican Power Authority, or PRPA tweeted, as of 7 AM they're working to repair the entire system.
PREPA said power had already been restored to more than one million customers. Hurricane Maria, the worst storm to hit the island in 90 years, devastated Puerto Rico's grid last September. Because of it thousands were still without power at the time of Wednesday's blackouts. The island's power utility company has suffered several blackouts since Maria, and has been in bankruptcy since last July.
And the grid remains vulnerable ahead of a new hurricane season beginning this summer.