"We are willing to talk but not until we see a total stop of the nuclear process and of any tests there," Haley said.
On Tuesday afternoon, the UN Security Council holds an urgent meeting to discuss further actions in relation to the recent missile launches by North Korea.
Haley said that the United States will make sure pressure is put on North Korea economically, diplomatically politically and internationally.
On Monday morning, North Korea officially confirmed that it had conducted the launch of a medium-range ballistic missile a day before. The missile fell in the Sea of Japan outside of Japan's special economic zone.