"[A total of] 33 PLA aircraft and 10 PLAN [People's Liberation Army Navy] vessels around Taiwan were detected by 6 a.m. (UTC+8) [22:00 GMT] today. R.O.C. Armed Forces have monitored the situation and tasked CAP aircraft, Navy vessels, and land-based missile systems to respond these activities," the ministry tweeted.
It added that 12 of the detected aircraft, including SU-30, J-10 and J-16 jets, Y-8 transport aircraft, a WZ-7 drone and a Z-9 helicopter, had entered the island's southwest and southeast air defense identification zone.
The situation around Taiwan recently escalated again after Taiwanese President Tsai Ing-wen met with US House Speaker Kevin McCarthy in April, with Beijing launching massive three-day military drills near the island in what it called a "warning" to Taiwanese separatists and foreign powers.
Taiwan has been governed independently of mainland China since 1949. Beijing regards the island as its province, while Taiwan maintains that it is an autonomous entity but stops short of declaring independence. Beijing opposes any official foreign contacts with Taipei and regards Chinese sovereignty over the island as indisputable.