Hurricane takes aim at Caribbean Islands

SAN JUAN, Puerto Rico --

Islanders went door to door Thursday to warn neighbors of Hurricane Dean, which spun toward the Caribbean packing 100 mph winds and threatens to strengthen into an extremely dangerous storm by next week.

The first hurricane of the Atlantic season is expected to pass over St. Lucia and the rest of the Lesser Antilles early Friday, then intensify as it enters the warm waters of the Caribbean. It was too early to tell whether the storm would eventually strike the United States.