There is a risk North Korea may try to exploit the domestic political turmoil in South Korea and it is in Washington's interest to help resolve the issue, U.S. national security adviser Jake Sullivan said on Friday.

Denuclearization of North Korea is imperative, South Korea said Tuesday after President Donald Trump described the reclusive regime as a “nuclear power.”

Donald Trump’s convention-busting acknowledgement of North Korea as a nuclear power bucks years of US policy – and sets South Korea on edge.

South Korea rebuked President Trump’s remarks calling North Korea a “nuclear power,” raising concern about the relationship between the two countries. “North Korea’s denuclearization remains a consistent principle upheld by the international community,