North Korean leader Kim Jong Un declared that his country is no longer bound by its self-imposed moratorium on nuclear and intercontinental ballistic missile (ICBM) tests, while also warning of a "new strategic weapon" that he vowed to soon reveal to the world, state-run media reported Wednesday.

"There is no ground for us to get unilaterally bound to the commitment any longer," Kim said of the moratorium during a meeting of top ruling party officials, the North's official Korean Central News Agency reported.

Kim accused the administration of U.S. President Donald Trump of dragging its feet in nuclear negotiations, warning that the nuclear-armed North will soon show off "a new strategic weapon" as it continues to build up its nuclear deterrent in the face of "gangster-like" U.S. sanctions and pressure.