China's aircraft carrier formation takes drills to East China Sea

Meanwhile, anti-air missiles were fired from ships surrounding the carrier.

In the anti-submarine drills, the flotilla successfully detected and dodged an attack range from "enemy" submarines.

Monday marked the 69th anniversary of the People's Liberation Army (PLA) Navy. More than 600 officers onboard the carrier Liaoning stood in formation on deck to celebrate the day by committing themselves to the cause of building a first-class navy.

Over the past ten days, the carrier formation has undertaken intensive live drills in at least three seas: the West Pacific, the South China Sea and the East China Sea.