Melissa strengthens into Category 4 hurricane
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Melissa has intensified into a category 4 hurricane and could develop further to become a category 5 as it approaches Jamaica.
The National Hurricane Center in Miami warned of "life-threatening and catastrophic flash flooding and landslides" throughout Hispaniola.
With slow-moving Tropical Storm Melissa expected to strengthen into a Category 1 hurricane as soon as Saturday as it churns towards Jamaica and southwest Haiti, the United Nations said Friday it’s actively helping the Caribbean respond to any devastation.