A stranded Chinese bulk coal carrier leaking oil into the sea around Australia’s Great Barrier Reef is in danger of breaking up and damaging the reef, government officials said on Sunday.

The 230-meter (754-ft) Shen Neng I was on its way to China when it ran aground on a shoal on Saturday. It had 950 tonnes of oil on board and officials said patches of oil had been spotted in the water early on Sunday, but no major leak.

The premier of Queensland state Anna Bligh said the ship was in a poor state, and posed a danger to the reef.