Beryl, a storm building momentum in the Atlantic Ocean, is now the first named hurricane of the season. The storm threatens to wallop a number of Caribbean islands as it strengthens further. Hurricane Beryl, which formed Friday night, has the potential to grow into a Category 3 storm as it moves from the Caribbean into the Gulf of Mexico in the coming days.

Beryl is expected to reach the Caribbean islands of Barbados, Dominica, Grenada and Martinique late on Sunday.

National Hurricane Center forecasters predict that by the time the storm reaches the Windward Islands - which are west of Barbados - there will be "hurricane-force" winds, "life-threatening" storm surge and heavy rainfall.

Beryl is the second named storm of the season after Tropical Storm Alberto, which made landfall in northeast Mexico on 20 June. The heavy rains of that storm killed four people.