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,

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

President Ferdinand “Bongbong” Marcos Jr. expressed concern Monday over the Russian attack submarine that was spotted in the West Philippine Sea last week.

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