The 243-foot-long vessel is armed with a missile system that has a range of 7,450 miles, according to Russia's state-run TASS news agency.

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

The Philippine navy and air force were dispatched to monitor the submarine as it moved through the contested area.

Philippine President Ferdinand Marcos Jr. said the presence of a Russian submarine in the Southeast Asian nation’s waters is “very concerning” as its military vowed to continue safeguarding its maritime sovereignty.

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.

Philippine President Ferdinand Marcos on Monday described as "very worrisome" the presence of a Russian attack submarine off the country's coast in the disputed South China Sea.

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