Shell said on Tuesday that most of the oil leak from a land-based pipeline at Shell Energy and Chemicals Park Singapore on Bukom island had been cleaned up, with only small patches of light sheens around the island and Bukom Kechil remaining.

A land-based pipeline leak has led to about 30-40 metric tons of “slop” — a mixture of oil and water — being spilled into the sea off Singapore, Shell Plc said in a statement today.

Singapore said it was alerted to an oil leakage from a Shell land-based pipeline early Sunday, and steps have been taken to clean up the spill.

An oil leakage from a pipeline in Singapore operated by Shell (NYSE:SHEL) was reported early Sunday, according to local officials. They said a cleanup was under way. The leak was reported to have “stopped at source,

Major energy company Shell and Singapore's Maritime and Port Authority deployed clean-up measures after a leak from a land-based pipeline, they said on Sunday.

An oil pipeline belonging to British giant Shell began leaking into the sea on Sunday, Singaporean authorities said, adding that the spill was stopped and cleanup crews deployed.