Twenty-three words. That was apparently as much ink U.S. Secretary of State Rex Tillerson was willing to devote to North Korea after the reclusive country's latest missile launch Wednesday.

"North Korea launched yet another intermediate range ballistic missile. The United States has spoken enough about North Korea. We have no further comment," Tillerson said in a curt — and unusual — statement.

Observers called the response odd and a departure from the standard State Department playbook.