(Extracted from "Time Magazine", 01/12/2022): "Flights out of some airports on the U.S. West Coast
were briefly halted (for
around 15 minutes) by aviation regulators as a precaution on Monday, after North Korea launched a high-speed missile in a test. ... North Korea’s missle flew at almost 10 times the speed of sound into waters off its eastern coast, ratcheting up tensions
in the region and with the U.S."