Some controllers erroneously referred to it as a national ground stop, something which hasn't been seen since 9/11. NORAD insists that it was the FAA's call to issue the ground stop and that it did not issue a warning or alert as a result of the North Korean missile launch. We are reviewing the process around this ground stop as we do after all such events." The launch on Tuesday was the second such launch by North Korea within the space of a week. In any case, there is no question that the launch violated UN Security Council resolutions that prohibit North Korea from any ballistic missile activity.

Source: CNN January 14, 2022 14:31 UTC