North Korea enabled Russia to increase missile attacks against critical Ukrainian civilian infrastructure and supplied more than 20,000 containers of munitions, according to a report by the Multilateral Sanctions Monitoring Team, a group comprising 11 UN members.

The group, launched in October last year to monitor U.N. sanctions against North Korea after a Security Council panel was scrapped by Russia and China, also said Moscow helped the North improve missile performance in return by supplying data.