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.

Japan-South Korean alliances during his meeting with Kim Jong Un, highlighting the "invincible fighting brotherhood" with the country.

Russia’s foreign minister has described the relationship between his country and North Korea as “an invincible fighting brotherhood” as he met its leader Kim Jong-un.