Sabah Region Marine Commander, ACP Mohamad Madun, said the palm oil was seized during 'Ops Cantas Khas' by its patrol boat after inspecting an anchored vessel at Sabindo waters at 7.45am.
"After further inspection, we found that the vessel contained 15 tonnes of unprocessed oil palm.
According to its 28-year-old Indonesian skipper, the palm oil was obtained from a neighbouring country for the Tawau market.
"The skipper and one crew were further detained, together with the items for failure to produce documentation," he said.
Mohamad said the second seizure involved Indonesian cosmetics from a passenger ferry by a marine patrol at about 10.15am during 'Op Paradise' at Sg Tongkang, here.
"All the items worth RM9,512 were seized from the cargo space of the ferry which just arrived from Nunukan, Indonesia.
All were kept inside seven boxes but no passenger came forward to claim the items," he said.
Among of the cosmetics, he said are herbal medicines and tablets.
He said this case is being investigated under Drugs and Cosmetic Regulations.