The Maritime and Port Authority of Singapore (MPA), home to the world's top marine refuelling hub, said it is investigating a number of incidents of ships being affected by bunker fuel contamination in the port.

At least 14 ships that received tainted high-sulphur fuel oil (HSFO) from Singapore suffered a loss of power and engine problems, fuel and oil testing firm Veritas Petroleum Services (VPS) said late last week.

"After MPA was...