Hurricane Erin becomes a Category 4 as it rapidly intensifies in the Caribbean

Hurricane Erin is rapidly intensifying as it tracks above the northeastern Caribbean Saturday, churning up rough surf and sending rain and gusty winds to islands south of its path.

​ Hurricane Erin is rapidly intensifying as it tracks above the northeastern Caribbean Saturday, churning up rough surf and sending rain and gusty winds to islands south of its path. Read More Breaking News, Latest News and Videos | CNN