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.

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,

Singapore agencies said on Tuesday they were making progress in cleaning up an oil leak and there had been no new sightings of oil at sea or onshore as of 3 p.m. (0700 GMT).

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.

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.