US carriers urged to comply with China air zone rules --- The US says it expects its civilian aircraft to observe China's rules in an air defence zone in the East China Sea. -- A US statement said this did not mean the US accepted China's requirements in the zone covering territory claimed by China, Japan, Taiwan and South Korea. -- China wants all aircraft there to file flight plans and identify themselves. -- The US, Japan and South Korea say they have flown military aircraft in the area unannounced. But China said it scrambled fighter jets on Friday. -- The move was to monitor US and Japanese aircraft in the zone. -- Japanese officials gave no details of the flights, but said they were continuing to conduct routine operations in the region and had encountered no "abnormal instances so far". - More, BBC