The U.S., South Korea and Japan joined a group of 50 countries in calling for continued monitoring of sanctions on North Korea’s weapons programs on Wednesday, following the dissolution of the U.N. sanctions panel on the DPRK.

The U.N. Panel, which had investigated sanctions evasion and published its findings in binannual reports since 2009, disbanded on Tuesday after Russia vetoed a resolution to extend its mandate in March.

“For the past 15 years, the Panel has provided objective, comprehensive reporting and analysis of U.N. sanctions implementation on the DPRK,” according to a joint statement delivered by U.S. Ambassador Linda Thomas-Greenfield.