SEOUL, May 5 (Reuters) - Efforts led by the U.S. and other Western countries to form new groups to monitor sanctions on North Korea will fail, the country's U.N. envoy said on Sunday, according to state media KCNA.

Ambassador Kim Song made the comment in response to a joint statement the U.S. and its allies issued this week calling to continue the work of a U.N. panel of experts monitoring longstanding sanctions against Pyongyang for its nuclear weapons and missile programs.

Earlier this year, Russia vetoed the annual renewal of the panel amid U.S.-led accusations that North Korea has transferred weapons to Russia for use in its war in Ukraine.

"The hostile forces may set up the second and third expert panels in the future but they are all bound to meet self-destruction with the passage of time," KCNA quotes Kim as saying in a statement.

Last month, U.S. Ambassador to the United Nations Linda Thomas-Greenfield visited the Demilitarized Zone, a heavily fortified border between the two Koreas, which remain technically at war and urged Russia and China to stop rewarding North Korea for its bad behaviour.

Her trip came after Russia rejected the annual renewal of the multinational panel of experts that has over the past 15 years monitored the implementation of U.N. sanctions aimed at curbing North Korea's nuclear and missile programs.

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