FUZHOU - An oil belt floating off the coast of East China's Fujian province has been mostly cleaned up after a Singapore-registered ship struck a nearby reef last week, local maritime authorities said Wednesday.

About five cubic meters of heavy oil and four tonnes of wastewater have been salvaged from the spill so far, with no new spills detected, according to the Fujian Maritime Rescue Center.

Rescuers have unloaded 216 shipping containers from the ship, finding no dangerous goods inside, the center said, adding that container unloading and pollution control efforts are still under way.

The Singapore-registered Bareli ran aground near Jiangyin Port at 9:15 pm last Thursday while on route from the city of Ningbo to the provincial capital of Fuzhou. All 21 of the ship's crew members have been rescued.

The Fujian Maritime Rescue Center has dispatched 45 vessels from nearby cleaning and salvage companies and organizations to join the cleanup efforts.

The ship had 1,137 tonnes of fuel left when it sank.

Local marine and environmental protection departments are making extra efforts to monitor the impact of the oil spill. A marine patrol ship arrived at the site of the spill Tuesday afternoon to conduct monitoring activities.