Japanese Air Self-Defense Forces were scrambled in response to Chinese Air Force aircraft flying over the Korean Strait near the islands of Tsushima and Kyushu, local media reported on Monday.

The Chinese Xian H-6 strategic nuclear-capable bomber was spotted flying over the Tsushima Strait in southwestern Japan. A total of about eight Chinese military aircraft, including strategic bombers, were spotted flying over Japan.

The group of Chinese planes consisted of six H-6 bombers, an early warning plane and an intelligence-gathering plane, the ministry said, adding there was no violation of Japan’s airspace.

Shaanxi Y-8 and Shaanxi Y-9 transport aircraft were also registered in the region, NHK TV channel reported, citing the Japanese Defense Ministry.