urricane Maria strengthened into a "potentially catastrophic" Category Five storm as it barrelled into eastern Caribbean islands still reeling from Irma, forcing residents to evacuate in powerful winds and lashing rain.
The maximum-strength storm made landfall on the Caribbean island of Dominica around 0115 GMT Tuesday with top winds swirling at 160 miles (257 kilometres) per hour, the US National Hurricane Center (NHC) said.
"Dangerous" storm surges, destructive waves, flash floods and mudslides threatened the Leeward Islands -- the island group that includes Martinique, Puerto Rico and the US and British Virgin islands -- the NHC said.
The center earlier warned that "preparations to protect life and property should be rushed to completion" as the eye of the storm approached Dominica.
Guadeloupe -- the bridgehead for aid for Irma-hit French territories -- ordered all residents to take shelter in a maximum-level "violet alert" effective from 8:00 pm as powerful rains drenched the French Caribbean island.
St Kitts, Nevis, the British island of Montserrat, Culebra and Vieques were also on alert.
On Martinique, which is also part of France, energy supplier EDF said power had been cut off from 16,000 homes, although a hurricane warning on the island was later downgraded to a tropical storm.
In rain-lashed St Lucia, which also faced a tropical storm warning, flooding, mudslides and power outages were reported in parts of the island.
In Dominica, Prime Minister Roosevelt Skerrit said his roof had been blown off, his house was flooding and he was "at the complete mercy of the hurricane".
"Rough! Rough! Rough!" he wrote on his official Facebook page, later adding that he had been rescued.
The island's airport and ports have been closed, and the local water company shut down its systems to protect its intake valves from debris churned up by the storm.
School teacher Dominica Leandra Lander, a former Miss Dominica, said she had collected water, charged her electronic devices and ensured her important documents were safe.
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