CASTRIES, St. Lucia (AP) - Newly born Hurricane Tomas swept through a cluster of eastern Caribbean islands Saturday, tearing off roofs, damaging houses and downing power lines.
Authorities in St. Vincent were trying to confirm reports that three people died, including two men who might have been blown off a roof, said Jimmy Prince, emergency management spokesman.
Fierce winds tore roofs from nearly 100 homes and more than 400 people sought emergency shelter as the island plunged into darkness, he said.
"Many of them are workers who were unable to get off Mustique," he said, referring to a tiny island just south of St. Vincent.
In St. Lucia, winds ripped off the roof of a hospital, a school, a stadium and toppled a large concrete cross from the roof of a century-old church, government officials said.
Heavy rains also unleashed a landslide that blocked a main highway linking the capital to the island's southern region.
Prime Minister Stephenson King said he was still stranded in Barbados on an official trip and apologized to people on an island that reported a complete blackout.
"It hurts me to know that I am not around to give courage, strength and guidance at a time when we all must bond together and give support to each other," he said in a statement.
The government ordered two airports and all businesses closed and people called radio stations to admonish parents who were letting children play in the streets, where trees and power lines were falling.
"This is no joke," said calypso singer Nintus, one of the callers.
Organizers of the island's biggest Creole festival called off the event due to the storm, disappointing both would-be revelers and dozens of vendors who traveled to the capital to sell vegetables, fruits and other provisions.
"All my preparations have gone down the drain," said vendor Theckla Darius, from the rural community of Fond Assau. "It's been a lot of effort for nothing."
St. Vincent and Martinique, where at least 20,000 people were without power, streets flooded and tree branches were down. A cruise ship carrying nearly 2,000 tourists docked instead in Dominica.
Tomas had already knocked down power lines and damaged houses in Barbados as a tropical storm.
As the storm passed into the Caribbean, hurricane warnings were ended for the eastern islands, but tropical storm alerts remained in effect for Dominica, Martinque, St. Lucia, St. Vincent and the Grenadines, Tobago and Grenada.
The U.S. National Hurricane Center in Miami said Tomas had maximum sustained winds of 90 mph (150 kph) winds late Saturday and was centered about 75 miles (120 kilometers) west of St. Lucia. It was moving west-northwest at 9 mph (15 kph).
Tomas, the Atlantic season's 12th hurricane, was expected to drop up to 6 inches (15 centimeters) of rain in the region.
Forecasters said it could become a Category 2 storm Monday evening and possibly reach Category 3 by midweek, with winds around 115 mph (184 kph).
It was forecast to head toward Jamaica and could unleash heavy rains in southern portions of the Dominican Republic and Haiti, which is struggling to recover from a devastating earthquake and cope with a recent cholera outbreak.
Haiti issued an orange storm alert, the second highest level. Authorities warned southern and western regions - including the quake-ravaged capital of Port-au-Prince, where an estimated 1.3 million people are living in tent camps - to be on guard for high winds, thunderstorms and possible flooding.
But with few usable storm shelters and no feasible evacuation plan, residents will largely be on their own.
Tropical storm warnings were issued for Dominica, Tobago and Grenada, where the airport closed and gas stations sold out of fuel. Another tropical storm, Shary, headed into the open Atlantic after missing Bermuda.
Associated Press writers Duggie Joseph in Kingstown, St. Vincent
and Rodolphe Lamy in Fort-de-France, Martinique contributed to this