REUTERS

In remarks to the U.N. Security Council, Tillerson called on the international community to fully implement U.N. sanctions and to suspend or downgrade diplomatic relations with Pyongyang, Reuters said.

Read alsoTrump says major conflict with North Korea possible - Reuters"With each successive detonation and missile test North Korea pushes northeast Asia and the world closer to instability and broader conflict," Tillerson told the 15-member council. "The threat of a North Korean attack on Seoul or Tokyo is real."