The Maritime and Port Authority of Singapore (MPA) was alerted at about 13:30 local time on Monday, April 14, that a moored dredger had sunk off Tuas Harbour.
The MPA said there were no personnel reported to be on board the Belize-registered dredger KSE Hitachi at the time of the incident.
Port operations remain unaffected, though a navigational broadcast has been issued to advise passing vessels to keep clear of the area.
The dredger’s company is also making arrangements to salvage the vessel.
Three patrol craft have meanwhile been deployed to the site to render assistance.
The MPA also said that it is investigating the incident and that it will continue to monitor the progress of the situation and coordinate the resources of all parties to proceed with potential salvage operations.
The MPA has stressed that although the dredger was anchored before the sinking occurred, the accident still raises concerns about the safety management of the ship.