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KINGSTON, Jamaica (AP) _ Hurricane Iris barreled toward Jamaica on Sunday after lashing impoverished Haiti and triggering a mudslide in the Dominican Republic that killed a family of three.

The storm dumped heavy rains in the Dominican Republic's capital, Santo Domingo, on Saturday. It caused a mudslide that crushed a wooden house and killed a 27-year-old mother and her 3- and 8-year-old daughters, said Henry Peralta, a spokesman for the Civil Defense Force.

Iris was the first hurricane this season to threaten the Caribbean islands.

The storm's maximum sustained winds were near 85 mph, and it was expected to hit Jamaica later Sunday, bringing battering waves and rainfall of 3 to 5 inches, the U.S. National Hurricane Center in Miami reported.

Hurricane warnings remained in effect for Jamaica, the Cayman Islands and the southeastern Cuban provinces of Granma, Santiago de Cuba and Guantanamo.

Hurricane-force winds extended 25 miles from the storm center and tropical storm force winds another 115 miles, the center said. The storm was moving west at 17 mph.

Iris was a tropical depression on Thursday, when it dumped rain and brought gusty winds to St. Vincent and St. Lucia. On Saturday, it reached tropical storm strength with 39 mph winds.

Meanwhile, Tropical Storm Jerry formed and headed for Trinidad and Tobago, with maximum sustained winds of 45 mph. Moving west at 18 mph, it was expected to reach Trinidad and Tobago within 24 hours.