North Korean leader Kim Jong Un has been personally given a written and expanded American definition of "complete denuclearization" by U.S. President Donald Trump, U.S. National Security Advisor John Bolton said in an ABC interview on Sunday.

In addition to calling for the "elimination of their nuclear weapons program," however, Bolton said the U.S. "from the beginning" also wanted "chemical and biological weapons in the elimination of their weapons of mass destruction" and "their ballistic missile program ended as well."