Maria is expected to become a dangerous major hurricane as it nears the Leeward Islands in the Caribbean.
The category one hurricane will rapidly strengthen over the next 48 hours and will hit the islands late on Monday, says the US National Hurricane Center.
It is moving roughly along the same path as Irma, the hurricane that devastated the region this month.
Hurricane warnings have been issued for Guadeloupe, Dominica, St Kitts and Nevis, Montserrat and Martinique.
A hurricane watch is now in effect for Puerto Rico, the US and British Virgin Islands, St Martin, St Barts, Saba, St Eustatius and Anguilla.
Some of these islands are still recovering after being hit by Irma – the category five hurricane which left at least 37 people dead and caused billions of dollars’ worth of damage.
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