The U.S. National Hurricane Center in Miami says Hurricane Joaquin has strengthened again into a Category 4 storm.
The hurricane had dropped to a Category 3 on Friday but was upgraded early Saturday afternoon with maximum sustained winds near 155 mph (250 mph), with higher gusts. A gradual weakening was expected later in the day.
The center said swells generated by Joaquin will continue to affect portions of the Bahamas over the next few days.
A tropical storm warning and a hurricane watch were issued for Bermuda. Tropical storm conditions are expected to reach Bermuda by Sunday morning, with hurricane conditions possible later in the day.