Russia's foreign minister has warned the U.S., South Korea and Japan against forming a security partnership targeting North Korea.

Russia's foreign minister on Saturday warned the U.S., South Korea and Japan against forming a security partnership targeting North Korea as he visited his country's ally for talks on further solidifying their booming military and other cooperation.

Russia has warned the US, South Korea and Japan against forming an alliance targetting North Korea amid rising military cooperation between Russia and Pyongyang.