Tropical Storm Jeanne headed for the Bahamas on Saturday after an assault on the Dominican Republic that killed 10 people, destroyed hundreds of houses and forced thousands from their homes.

Far out at sea, Karl strengthened into the seventh hurricane of a relentless Atlantic season that has battered the Caribbean, Florida and the U.S. Gulf Coast. Forecasters said Karl was on a track that would keep it clear of the Caribbean and the United States.

The two storms came on the heels of Ivan, at one point one of the most powerful Atlantic storms on record, which hit the U.S. Gulf Coast before its remnants caused flooding and spawned tornadoes as far north as Maryland.

Jeanne, which also killed two people in the U.S. territory of Puerto Rico earlier in the week, prompted storm warnings in parts of the Bahamas, a 700-island chain with a population of 300,000. President Bush declared a disaster in Puerto Rico Saturday, a move that releases federal aid.

In the Dominican Republic, which shares the island of Hispaniola with Haiti, authorities said the death toll from the storm had risen to 10, while 146 people were injured as Jeanne lashed the north of the country for two days with high winds and torrential rains.

Emergency officials said more than 30,000 people had been evacuated from their homes.