Russia warns U.S., South Korea and Japan against forming security alliance 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.

Russian Foreign Minister Sergey Lavrov flew to North Korea's eastern Wonsan city on Friday for a meeting with his North Korean counterpart, Choe Son Hui.

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. That has raised concerns among South Korea, the U.S. and others that Russia might also transfer to North Korea sensitive technologies that can increase the danger of its nuclear and missile programs.