Italy's Fratelli D'Amato SpA -- owners of a tanker that leaked 80,000 liters of oil into Sydney Harbor, reportedly have ruled out sabotage as an explanation of how oil leaked from manually-operated valves.
The spill on Tuesday night was the worst in Sydney Harbor for 10 to 20 years.
Two valves on the side of the 96,000 dwt Laura D'Amato, which reportedly had were externally sealed by surveyors when the ship was loaded, were open and caused the oil spill.