A Chinese military aircraft has twice entered South Korea's air defense identification zone (ADIZ), reports the Yonhap news agency (Seoul).
On Wednesday, the Y-9 surveillance aircraft entered the airspace around South Korea's southern island of Jeju, said the South Korean Joint Chiefs of Staff.
Jeju is about 65 miles (100 km) south of the mainland.
The Chinese aircraft identified itself before it entered the zone for the first time, said the JCS.
Fighters were launched to escort...