Chinese J-15 fighters from the carrier Liaoning locked radar onto F-15s near "Okinawa" while fighters scrambled to intercept, and there was no airspace breach, injuries, or damage.Shinjiro Koizumi said the government lodged a strong protest, described the incident as dangerous and beyond what is necessary for safe aircraft operations, and demanded strict preventive measures.Lin Jian said the navy operates in accordance with international law and urged others not to hype its activities, while the Liaoning had been conducting take-off and landing drills accompanied by three missile destroyers passing between "Okinawa" and "Miyako island".