Oil slick off China coast trebles in size: official

The spill from a sunken Iranian tanker off China's east coast has more than trebled in size, just over a week after the ship sank in a ball of flames.Authorities spotted three oil slicks with a total surface area of 332 square kilometres (128 square miles), compared to 101 square kilometres reported on Wednesday, the State Oceanic Administration said in a statement late Sunday.The Sanchi, which was carrying 136,000 tonnes of light crude oil from Iran, collided with Hong Kong-registered bulk frei