North Korea said on Tuesday the United States had ignored a deadline for nuclear talks and it no longer felt bound by its commitments, which included a halt to nuclear testing and inter-continental ballistic missile tests, and may "seek a new path."

North Korean leader Kim Jong Un set a year-end deadline for denuclearization talks with the United States and White House national security adviser Robert O'Brien said at the time the United States had opened channels of communication.

O'Brien said then he hoped Kim would follow through on denuclearization commitments he made at summits with U.S. President Donald Trump.