TOKYO -- Monday's incursion by a Chinese military plane into Japanese airspace was a "grave violation of Japan's sovereignty," Defense Minister Minoru Kihara told reporters, but he did not say whether the two sides had used a hotline for emergency communication in such situations.
International relations
Japan condemns China military plane incursion as 'grave' violation
Tokyo silent on whether defense officials talked via year-old hotline
This Chinese Y-9 military reconnaissance plane was detected in Japanese airspace on Aug. 26. (Japan Ministry of Defense)
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