Japan’s Air Self-Defense Force had to scramble fighter jets in response to flights by Russian military aircraft near Japanese airspace on Wednesday, Kyodo news agency said on Thursday citing the Defense Ministry.

According to the ministry, a total of five Russian planes, including two Tu-95 Bear strategic bombers, two Su-24 Fencer reconnaissance planes and an A-50 Mainstay airborne early warning and control aircraft skirted Japanese territory on Wednesday.

“They flew over the Pacific Ocean and the Sea of Japan off Hokkaido and the Tohoku region in northeastern Japan,” Japanese officials said, adding that it was the first time a Russian AWACS plane was spotted near Japan.

Russia resumed strategic bomber patrol flights over the Pacific, Atlantic and Arctic oceans in August 2007.

Yesterday’s flights by Russian Air Force aircraft close to the coast of Japan were carried out strictly in accordance with international rules and took place over international waters, air force spokesman Col. Vladimir Drik said on Thursday.

“All flights by air force aircraft were carried out and are carried out in strict accordance with international rules on use of airspace above international waters, and not violating the borders of other states,” he said.

“They were escorted by on their flights by Japanese Air Self Defense Force F-15 and F-16 fighter aircraft,” Drik said.