Hurricane Ike killed at least 37 people in Haiti and ripped off rooftops in the southern Bahamas on Sunday as Cuba scrambled to get hundreds of thousands out of the path of a storm headed toward the U.S. Gulf oil patch and possibly New Orleans, Reuters reported. Despite weakening slightly, Ike was still a dangerous Category 3 hurricane with 120 mph (195 kph) winds and a possible 12-foot (3.6-metre) storm surge. It bore down on Cuba's coast after dumping more heavy rain on Haiti and raging through Britain's Turks and Caicos, and Great Inagua, the Bahamas' southernmost island. "This one is quite severe," said Inagua resident Shanie Roker. "There is a lot of wind and rain. Roofs in Matthew Town are being damaged and trees are coming down." Residents of the Florida Keys, a 110-mile (177-km) island chain connected by bridges with only one road out, were told to evacuate as a precaution. Ike could follow a path similar to Hurricane Gustav through the Gulf of Mexico toward Louisiana and Texas. It may threaten New Orleans, the city swamped by Hurricane Katrina three years ago, and the Gulf energy rigs that account for a quarter of U.S. oil output and 15 percent of natural gas output. The hurricane rained new misery on Haiti. Authorities said at least 37 people, including 13 children, were killed by floods triggered by Ike in Cabaret, a town north of the capital, Port-au-Prince. "The whole village is flooded," civil protection official Moise Jean-Pierre said. "The death toll could go higher." Flooding from Tropical Storm Hanna last week was believed to have killed at least 500 people around the port city of Gonaives. On Sunday, rain from Ike was causing the La Quinte river to rise again and floodwaters were seeping back into Gonaives, Mayor Stephen Moise said. All of the bridges linking the city to the rest of the country had collapsed. "Gonaives is really a devastated and isolated city," he said. "We cannot bear another hurricane."