unite nations two north korean shipments syrian government agency responsible country chemical weapons program intercept past six months accord confidential unite nations report north korea sanction violations report panel independent u.n. experts submit u.n. security council early month see reuters monday give detail interdictions occur shipments contain panel investigate report prohibit chemical ballistic missile conventional arm cooperation syria dprk north korea experts write 37-page report two member state interdict shipments destine syria another member state inform panel reason believe goods part komid contract syria accord report komid korea mine development trade corporation blacklist security council 2009 describe pyongyang key arm dealer exporter equipment relate ballistic missiles conventional weapons march 2016 council also blacklist two komid representatives syria consignees syrian entities designate european union unite state front company syria scientific study research centre ssrc syrian entity identify panel cooperate komid previous prohibit item transfer u.n. experts write ssrc oversee country chemical weapons program since 1970s u.n. experts say activities syria north korea investigate include cooperation syrian scud missile program maintenance repair syrian surface-to-air missiles air defense systems north korean syrian missions unite nations immediately respond request comment experts say also investigate use vx nerve agent malaysia kill estrange half-brother north korea leader kim jong un february north korea u.n. sanction since 2006 ballistic missile nuclear program security council ratchet measure response five nuclear weapons test four long-range missile launch syria agree destroy chemical weapons 2013 deal broke russia unite state however diplomats weapons inspectors suspect syria may secretly maintain develop new chemical weapons capability country six-year long civil war organisation prohibition chemical weapons say ban nerve agent sarin use least twice use chlorine weapon widespread syrian government repeatedly deny use chemical weapons north korea shipments syria chemical arm agency intercept u.n. report