A Chinese navy vessel was spying on Filipino-American war games off Palawan province last month, according to senior military officers, and the Department of Foreign Affairs (DFA) summoned Beijing’s ambassador to Manila over the ship’s “illegal intrusion and lingering presence” in Philippine waters. The presence of People’s Liberation Army Navy Dongdiao-class electronic reconnaissance ship, PLAN 792, in the Sulu Sea from Jan. 29 to Feb. 1 was recorded while Philippine and US Marines were holding Marine Exercise 2022 (MAREX 22) off Palawan, the military officers who were monitoring the exercises told the Inquirer on Tuesday.

Mangosing, F. (2022, March 16). Sino ship 'spied on PH-US war games'. Philippine Daily Inquirer, pp. A2, A4.