On October 28, the New Zealand Defence Force (NZDF) provided updates on its ongoing efforts following the sinking of the HMNZS Manawanui near Samoa's Upolu island earlier this month. Navy divers, operating from HMNZS Matataua, are leading underwater monitoring and surveillance of the wreck to manage environmental risks and assess the structural integrity of the ship's fuel tanks. The focus remains on preventing fuel spills and addressing any possible ecological impacts on the surrounding reef and marine life.
The incident, which saw the vessel run aground and later capsize due to rough sea conditions, initially raised concerns of an oil spill. Nearly 1,000 tonnes of diesel fuel were onboard, making containment a priority for both New Zealand and Samoa. As of yesterday, NZDF divers report that the vessel's main fuel tanks appear stable, with no active leaks detected during recent dives. Spill containment kits remain on standby, and the NZDF is working closely with local authorities to ensure rapid intervention if any leakage occurs.
Support teams, including medical personnel, are on-site to maintain the safety of divers, who are executing carefully timed dives under strict safety protocols. Each dive undergoes meticulous planning to monitor and, if needed, contain fuel or retrieve debris, ensuring that environmental impacts are kept minimal. Commodore Andrew Brown reiterated NZDF's commitment to working alongside Samoa, emphasizing the goal of preserving local ecosystems.
A formal inquiry into the causes of the incident has been established, and the NZDF is also considering salvage options to eventually remove the wreck from the reef, a challenging task given the depth and positioning of the vessel. Community concerns persist about the environmental effects, as the site is vital for local fisheries and tourism, but the NZDF assures residents that all necessary precautions are being taken.
The HMNZS Manawanui had been scheduled to return to New Zealand in November after completing its deployment but remains a significant operational loss for the Royal New Zealand Navy (RNZN), now down to eight operational vessels.
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