Florence intensified into a hurricane early Sunday and it headed for Bermuda, where residents installed storm shutters and hauled their yachts onto beaches, according to the National Hurricane Center in Miami. But it was too early to tell whether it will make a direct hit. The storm became a Category 1 hurricane with maximum sustained winds of 75 mph early Sunday and was expected to strengthen further during the day, the hurricane center said. Bermuda issued a hurricane watch and a tropical storm warning, and the government urged its 65,000 residents to take precautions. Part of the North Atlantic island's volunteer army has been mobilized, according to a report of the Associated Press.