“Our military is observing the situation and maintaining readiness,” the JCS sad. A senior US administration official said the US is monitoring the situation and consulting with allies.
The launch is the 10th since May.
In August, two projectiles were launched. A US official confirmed then that North Korea launched short-range ballistic missiles, and said they appear to be similar to other recent launches.
The previous four rounds of launches by North Korea were believed to be short-range missile tests, which would violate United Nations resolutions.