The United States announced its readiness to apply new sanctions against the DPRK

“At the moment, we are preparing a new package of sanctions,” Sullivan quoted TASS as saying at a conference on US-South Korean relations organized by the Washington-based Center for Strategic and International Studies.

He noted that against the background of North Korea's missile launches, the United States is increasing cooperation with Japan and South Korea.

Sullivan also said that the United States is ready for a serious and sustainable dialogue with the DPRK.