SINGAPORE, April 5 -- Singapore's National Parks Board (NParks) announced yesterday that the Chek Jawa Wetlands in Pulau Ubin has reopened for public access, after it was closed from an oil spill on Thursday.

"To prevent any further impact, we will let the oil residue at the affected areas at Chek Jawa Wetlands break down naturally, and will continue to monitor the biodiversity-sensitive areas closely.

"The booms that were pre-emptively placed at Chek Jawa Wetlands will also be progressively removed," NParks said in a statement.

However, the Singapore Food Agency (SFA) said yesterday that one fish farm, De Kelong, was more significantly affected by the spill.

On Friday, Singaporean authorities announced clean-up efforts along the shor...