Chinese naval aviation forces on Monday carried out a drill in the Sea of Japan, a spokesperson with the People’s Liberation Army (PLA) Navy said Tuesday.

That was reported by xinhuanet.com.

Liang Yang said the drill, testing the coordination between naval vessels and aircraft, was “a regular arrangement in accordance with the annual training plan.”

The event did not target “any specific nation, region or objective,” and was “in line with international law and practice.”

Earlier Japanese Air Self-Defense Forces have reported that group of Chinese planes consisted of six H-6 bombers, an early warning plane, and an intelligence-gathering plane, were spotted over Japan.