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.

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.Roy Vincent Trinidad, spokesman for the navy in the 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". A Russian Kilo-class submarine was sighted 80 nautical miles off the western province of Occidental Mindoro on Nov.

President Ferdinand R. Marcos Jr. on Monday expressed alarm over the sighting of a Russian attack submarine in the West Philippine Sea (WPS), saying it is "very worrisome." The submarine was first observed 80 nautical miles west of Cape Calavite in Occidental Mindoro on Nov.

The Russian attack submarine was spotted passing through the Philippines' exclusive economic zone (EEZ) after it completed its military exercises with the Malaysian Navy in the Malaysian coastal city of Kota Kinabalu,

President Ferdinand Marcos Jr. expresses concern over Russian submarine sighting in PH waters, highlighting escalating tensions in the South China Sea