Hurricane Fiona intensifies to Category 4 as Puerto Rico contends with aftermath

The U.S. territory continued to grapple with the major destruction left in Fiona's wake, with many facing sweeping power outages and water supply issues.

storm overnight after battering the Turks and Caicos Islands and leaving major destruction in its wake in Puerto Rico and the Dominican Republic.

Meanwhile, a new tropical storm, Gaston, gained strength in the Atlantic Ocean, with maximum sustained winds increasing to nearly 50 mph with higher gusts as of early Wednesday.

The National Hurricane Center warned that swells generated by Gaston could affect the Azores, an archipelago in the mid-Atlantic, later this week, causing life-threatening surf and rip current conditions.

By late Wednesday, Fiona was about 550 miles southwest of Bermuda, and is expected to pass to the west of the British island territory Thursday night, according to the hurricane center.

The storm had maximum sustained winds of 130 mph and was moving north at 10 mph, it said.

A hurricane watch and tropical storm warning is in effect for Bermuda, which could see 2 to 4 inches of rain, the center said in an update late Wednesday.