Russia willing to shoot ships and submarines into its waters

The comment came two days after Moscow said a Russian naval ship had removed an American submarine from its waters into the Pacific. The US denied having conducted military operations in Russian territorial waters.

Tensions between the two countries are on the rise, with Washington warning that Russia could attack Ukraine at any time. Moscow, on the other hand, has denied any such charges, despite having gathered more than 100,000 troops near Ukraine's borders, and has accused Western governments of hysteria.

Meanwhile, all Russian military fleets have conducted exercises in recent weeks in vast areas, including the Atlantic and Pacific Ocean and the Mediterranean.