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. Russian Foreign Minister Sergey Lavrov spoke at North Korea's eastern Wonsan city, where he met the country's leader, Kim Jong Un, and conveyed greetings from President Vladimir Putin. Relations between Russia and North Korea have been flourishing in recent years, with North Korea supplying troops and ammunition to support Russia’s war against Ukraine in return for military and economic assistance.