The Russian anti-IL-38 flew over along the central part of the Japanese island of Honshu from the Sea of Japan on Friday, the website of the Joint Staff of the Ministry of Defense of Japan.
Japan's airspace was not violated, but the air defense forces were put on alert.
In late April, the Joint Staff reported the appearance of two Russian long-range anti-aircraft Tu-142, which flew over the Sea of Japan. In this case airspace Japan also not been broken.
Recently, the emergence of Russian aircraft near Japan methodically marked Self-Defense Forces Joint Staff of the country, but do not cause increased interest in the Japanese media and politicians, which may be a reflection of the overall positive-expectant attitude in society towards Russia after a recent visit to Moscow by Prime Minister Shinzo Abe and his meeting Russian President Vladimir Putin.