Seven people have died in flooding and mudslides after Hurricane Tomas lashed camps for earthquake survivors and coastal towns in Haiti.
Haitian authorities, already struggling with the aftermath of the earthquake and a subsequent cholera outbreak, believed the worst from Tomas was over.
But meteorologists warned of more rain for parts of Haiti, the Dominican Republic, the Bahamas, Puerto Rico and the Turks and Caicos.
Four people died in Haiti's southwestern province of Grande Anse, two in South province and one at Belle Anse in south-east province.
The weather pattern could still pose a danger for Haiti
Flooding was reported in the coastal towns of Les Cayes, Jacmel and Leogane.In capital Port-au-Prince, still scarred by the earthquake that killed 250,000 people, hundreds of thousands of homeless survivors huddled under tent and tarpaulin shelters.
The United Nations and relief agencies have gone on maximum alert to prepare for the possibility of another humanitarian catastrophe in the western hemisphere's poorest nation.
The UN's Office for the Coordination of Humanitarian Affairs (OCHA) said the storm could have dealt a far worse blow.
"We have been incredibly lucky," OCHA spokeswoman Imogen Wall said, while noting that "the flooding is still serious, particularly in Leogane, because of the cholera situation".
The UN said the storm will almost certainly exacerbate the epidemic that has killed 442 people and sickened more than 6,700 so far.
