Tropical Storm Gert strengthens in Atlantic Ocean

U.S. forecasters say Tropical Storm Gert has strengthened in the Atlantic Ocean and could approach Bermuda Sunday night or early Monday.

The National Hurricane Center in Miami said Sunday that a tropical storm warning has been issued for Bermuda, though Gert's center was still about 255 miles (410 kilometers) from the islands.

Gert was moving north-northwest at 8 mph (13 kph) and had maximum sustained winds of 45 mph (72 kph). It could get stronger as it makes its way toward Bermuda.

Forecasters say Gert is projected to remain well away from the U.S. East Coast.