North Korea has demanded that U.S. Secretary of State Mike Pompeo be removed as Washington's top negotiator with Pyongyang, just hours after announcing the test-firing of a "new-type tactical guided weapon," the country's state-run media said Thursday.

Both moves appeared to be an apparent bid by North Korean leader Kim Jong Un to bring deadlocked nuclear talks with the U.S. back to the top of President Donald Trump's foreign policy agenda.

The North called for replacing Pompeo with a "more careful and mature" negotiator, accusing the top U.S. diplomat of failing to understand Pyongyang's position and causing the denuclearization talks to become "entangled."