Seoul, South Korea — Russia’s foreign minister 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.

Foreign Minister Sergey Lavrov arrived in the eastern North Korean city of Wonsan on Friday to hold talks with his North Korean counterpart, Choe Son Hui

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