In Tokyo following his latest visit to Pyongyang, U.S. Secretary of State Mike Pompeo denies that Washington has softened its stance against North Korea.

The U.S. is still demanding "complete, verifiable and irreversible denuclearization (CVID)" of the nuclear-armed hermit state, he said Sunday.

Speculation has been rife that the U.S. might have tempered its demand on the North — having recently started calling for "the final, fully verified denuclearization (FFVD)" of North Korea instead of CVID, a key phrase jointly used by the United States, South Korea and Japan.