Fears tonight the sinking of the Manawanui in Samoa could do serious damage to the reef it hit and the delicate ecosytem in the surrounding marine reserve. Locals have reported seeing an oil-like substance in the water around the stricken ship, and a smell of oil. It's not clear what potentially toxic substances were on board the NZ Navy vessell. The reef that the Manawanui struck on Saturday night is home to an array of fish rays and coral - and is famous for its large population of sea turtles. The coast, at the sourthen end of Upolu, is also dotted with seaside resorts, including the Sinalei Reef Resort which is due to host King Charles and other world leaders at the Commonwealth Heads of Government Meeting later this month. We're joined now by the president of the Samoa Conservation Society James Atherton