The Maritime and Port Authority has informed that the efforts to contain in and clean up the oil spill from a collision at sea last Tuesday have finally shown constructive results.

The waters from Changi Naval Base to East Coast Park are clean, as is the Singapore Strait south of Changi.

The cleaning of Chek Jawa has been finally finished, but the National Environment Agency said some minute tar balls can still be found along the beaches that were affected. They are being removed.

The beaches have still been kept closed and water samples have been forwarded to NEA for examination. The results are anticipated to come out today.

Researcher Ng Ngan Kee, a mentor at the National University of Singapore's Systematics and Ecology Laboratory, said a number of locally-produced and locally-caught seafood might get affected by the oil residue that may be still there.

Eight local fish farms are ready to pay for trials, so as to prove that their seafood is safe for consumption purpose.

Singapore Marine Aquaculture Cooperative Chairman Lee Van Voon said that the group can send the fish to a third party independent lab, so that, it can carry out an autopsy and a complete evaluation of the provided fish.