Tropical Storm Erika kills twenty in Dominica.Florida declares state of emergency (BBC video)

A tropical storm heading across the Caribbean has killed at least 20 people on the island of Dominica, with dozens more missing.
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Tropical Storm Erika hit Dominica, in the eastern Caribbean, causing floods and mudslides that have set the country back 20 years, its prime minister said.
Haiti and the Dominican Republic are now expecting 53mph (85km/h) winds.
A state of emergency has been declared in the US state of Florida, where the storm is expected on Sunday.
Dominica's Prime Minister Roosevelt Skerrit said in a televised address late on Friday that hundreds of homes, bridges and roads had been destroyed.