SINGAPORE (Reuters) - Oil prices extended their losses on Monday, dragged down by worries about lower demand in China, the world's largest oil importer, following a coronavirus outbreak there.Brent and U.S. West Texas Intermediate (WTI) crude fell for a fourth week in a row last week after airlines cancelled flights to China. Supply chains across the world's second-largest economy have also been disrupted, prompting its biggest refiner Sinopec to cut output.Brent crude was at $56.14 a barrel by..