Japan, South Korea and China step up provocative aircraft patrols over disputed Senkaku / Diaoyu islands

The Chinese planes had conducted "normal air patrols" yesterday as "a defensive measure and in line with international common practices,'' said Shen Jinke, spokesman for the People's Liberation Army (PLA) Air Force, according to state news agency Xinhua. Shen said China's air force would remain on high alert and take measures to protect the security of the country's airspace.

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