Authorities in Victoria are trying to contain a diesel slick stretching for hundreds of metres in Port Phillip Bay near Melbourne after a trawler ran aground.
The 42-year-old captain of the commercial fishing boat and and his five crew had to be rescued from the stricken boat, the ABC reports.
Police say the captain will face charges after he was detected with a blood-alcohol reading above the legal limit.
Water pollution experts say the boat's diesel spillage has not affected Melbourne's beaches and the waters are safe for swimming.
Victoria's marine pollution controller, Donovan Croucamp, says crews are working to anchor the boat and minimise further water pollution.