Iran has not declared all its chemical weapons capabilities to the global chemical weapons agency in The Hague, in violation of an international non-proliferation convention, the U.S. ambassador to the organisation said on Thursday.

Ambassador Kenneth Ward told a meeting of the Organisation for the Prohibition of Chemical Weapons (OPCW) that Iran had failed to report a production facility for the filling of aerial bombs and maintains a programme to obtain banned toxic munitions.

There was no immediate Iranian reaction to the remarks.