Chinese fighter jets tailed US jets over the disputed islands in the East China Sea.
The BC News reported:
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China says it scrambled fighter jets to monitor US and Japanese planes as they flew in its newly declared air defence zone in the East China Sea on Friday.
The zone covers territory claimed by China, Japan, Taiwan and South Korea.
China said last week that all aircraft crossing through the zone must file flight plans and identify themselves or face “defensive emergency measures”.
The US, Japan and South Korea say they have since defied the ruling and flown military aircraft in the area.
The air defence identification zone (ADIZ) covers a vast area of the East China Sea and includes a group of islands which are claimed by Japan, China and Taiwan.
South Korea claims ownership of a submerged rock, known as Ieodo, within the zone.
The establishment of the ADIZ has caused widespread anger, with the US calling it a “destabilising attempt to alter the status quo in the region”.