Philippines' Marcos says presence of Russian submarine 'very worrisome'

This handout photo taken on November 28, 2024 received on December 2, 2024 from the Armed Forces of the Philippines shows an aerial shot from an Armed Forces of the Philippines surveillance plane of a Russian Kilo-class submarine UFA 490 in the disputed South China Sea.

President Ferdinand Marcos Jr. said on Monday the presence of a Russian attack submarine in the Philippines' exclusive economic zone (EEZ) in the South China Sea was "very worrisome."