The military says a Japanese helicopter violated South Korean airspace last month near the Dokdo islets amid mounting tensions between Seoul and Tokyo over rights to the rocky outcroppings.
A military source says a Japanese Self-Defense Forces helicopter breached the Korea Air Defense Identification Zone on September 21st and flew within 54 kilometers of Dokdo. The determination was made in a report the Defense Ministry submitted to Democratic United Party Representative Baek Kun-ki, who is a member of the parliamentary committee on national defense.
The helicopter returned to its warship five minutes after four of South Korea’s F-15K fighter jets responded.
Earlier in May, a Japanese Coast Guard helicopter crossed into the Korea Air Defense Identification Zone and neared Dokdo. It's been discovered that Japan engages in such action near Dokdo’s skies once or twice a year.
According to a bilateral agreement, South Korea and Japan must give prior notice to each other and get approval before their aircrafts enter their respective air defense areas. Japan was found to have disregarded such procedures.