Three of the underwater drones recovered in Philippine waters may have been deployed by China to map the country’s seabed, authorities said on Tuesday. Commodore Roy Vincent Trinidad, the Navy spokesperson for the West Philippine Sea, said these were the results of the forensic investigations done on three of five drones.

Corrales, N. (2025, April 16). Tests show drones found in PH likely from China. Philippine Daily Inquirer, p. A4.