(CNN) -- After dealing a walloping blow to Haiti, where at least six people died and a number of homes were destroyed, Tropical Storm Tomas weakened rapidly Sunday, the National Hurricane Center said.

As of 4 p.m. ET, Tomas was located about 500 miles (805 kilometers) south-southwest of Bermuda, forecasters said. It was downgraded to a tropical storm early Sunday. Its maximum sustained winds were at 60 mph (95 kph), but Tomas was not posing a threat to land.

The storm was heading north-northeast at near 3 mph (6 kph). It was forecast to turn northeast or east-northeast and accelerate in the next couple of days, the Hurricane Center said in its last advisory on Tomas. Further weakening is expected, forecasters said.

In Haiti, a nation still grappling with the effects of a killer earthquake and a deadly cholera outbreak this year, Tomas ruined houses and turned some streets into rivers. Six people were also killed by the storm, according to the Haitian Civil Protection Authority.

January's 7.0-magnitude earthquake killed 250,000 people and left 1 million more homeless. Many of those Haitians have been living in tent camps, and aid workers had been working in recent days to move the residents to safer housing, which was difficult to find.