On Tuesday, a sortie of 29 Chinese military aircraft was spotted flying in the southwestern area of Taiwan’s Air Defense Identification Zone (ADIZ). According to the Taiwanese Ministry of National Defense, the fly-by is the third-largest batch of warplanes from Beijing this year.

The spotted aircraft comprises eight Shenyang J-16 fighter jets, six H-6 strategic bombers, five Shenyang J-11 fighter jets, and four Sukhoi SU-30 fighter jets from the People’s Liberation Army (PLA).

The sorties also featured some support aircraft, including two KJ-500 airborne early warning and control planes, a Y-8 electronic signals intelligence aircraft, a Y-8 anti-submarine aircraft, one Y-9 anti-jamming plane, and one Y-20 aerial refueling aircraft entering the island’s ADIZ.

In response, the Taiwanese air force sent its combat aircraft to intercept the warplanes from Beijing. The island’s missile defense systems also sent standard radio warnings and monitored the aircraft’s movements.

“In response, the air force scrambled jets, issued radio warnings, and deployed air defense missile systems to monitor their activities,” the Taiwanese Defense Ministry said.