International efforts to find a U.N. replacement for the Panel of Experts monitoring North Korea sanctions have largely fizzled out, according to multiple U.N. diplomatic sources, less than three months after the Panel disbanded due to a Russian veto.

The dwindling momentum comes despite a joint statement by 50 nations in May calling for continued monitoring of the DPRK sanctions regimes, with the U.S. ambassador to the U.N. previously emphasizing that “we cannot allow the work that the Panel of Experts was doing to lapse.”

While member states initially made efforts to replace the Panelwith a mechanism established