In this photo provided by Maritime New Zealand, half of the cargo ship Rena sinks on a reef near Tauranga, New Zealand, Tuesday, 10 January 2012. The 774-foot (236-meter) vessel split in two over the weekend amid heavy seas and now the stern section is slipping from the Astrolabe reef and sinking. AP Photo / Maritime New Zealand, Graeme Brown

WELLINGTON, New Zealand – Half of a cargo ship that ran aground on a New Zealand reef three months ago began sinking into the ocean Tuesday, and debris and some oil were drifting from the wreck. The stern section of the Rena began slipping from its previous position on the Astrolabe Reef in the morning and was about three-quarters submerged by noon New Zealand time, Maritime New Zealand spokesman James Sygrove told The Associated Press. “The front 30 meters (100 feet) is still above the waterline, but the back section and the bridge are all under the water,” he said. Sygrove said the bow section of the boat remained firmly wedged on the reef. He said there is plenty of wood, plastic and other debris floating around the sinking stern section. “It’s quite a fluid situation,” he said, adding that authorities remain unsure of what will happen next. The mostly submerged stern still was perched on the edge of the reef and a small amount of oil and some containers fell overboard along with the debris, the maritime agency said in updates in the afternoon and evening. Cleanup teams were prepared if oil or any items washed ashore on the New Zealand coast. […] Maritime New Zealand estimates that less than 100 tons of oil remains on the ship after salvage crews managed to remove much of the remaining oil and nearly 400 containers. However, it was a slow process removing containers and hundreds were still aboard when it split apart. […]

Half of wrecked cargo ship sinking in New Zealand