US envoy to UN urges Russia, China to halt support for North Korea's weapon programs

U.S. Ambassador Linda Thomas-Greenfield urged Russia and China to halt their support for North Korea, saying that it shields the country from sanctions.

Her trip to South Korea came after Russia rejected the annual renewal of the multinational panel of experts that has over the past 15 years monitored the implementation of U.N. sanctions aimed at curbing North Korea's nuclear and missile programs.