The Philippine military has deployed a navy ship and air force planes to shadow a Russian submarine, which passed through the South China Sea off the country’s western coast last week

Philippine President Ferdinand Marcos Jr. said the reported presence of a Russian submarine in the Southeast Asian nation’s waters is “very concerning.”

MANILA: In a rare sighting, a Russian attack submarine surfaced in the West Philippine Sea (South China Sea) last week, multiple security sources told the Inquirer.

President Ferdinand Marcos Jr. said on Monday the reported presence of a Russian submarine in the Philippine's exclusive economic zone (EEZ) in the South China Sea was "very worrisome". The Philippine Daily Inquirer newspaper reported on Monday that a Russian attack submarine surfaced inside Manila's EEZ last week,

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". "That’s very concerning.

A Russian attack submarine was recently spotted in Philippine waters in a development which President Ferdinand Marcos Jr. said was “worrisome.”