U.S. Secretary of State Rex Tillerson on Friday called upon China and Russia to increase pressure on North Korea during a meeting of the UN Security Council (UNSC) which saw unanimous condemnation of the DPRK’s developing weapons programs.

During the meeting, which unusually was attended by North Korea, Tillerson criticised Beijing’s crude oil supplies to the DPRK and Russia’s use of North Korean labor.

“We particularly call on Russia and China to increase pressure including going beyond full implementation of UNSC resolutions,” the U.S. secretary of state told the assembled diplomats.

Tillerson reiterated Washington’s position that the United States was