The Japanese government said in a tweet that the missile may have been a “ballistic missile”.
The Japan Coast Guard said the likely ballistic missile had already fallen into the sea by 8:23 a.m. local time. All ships in transit are invited to look for updates.
The Japanese government also said it was confirming the safety of planes and ships.
The submarine missile test came after weeks of simmering tensions on the Korean peninsula, which have seen increased cooperation between Pyongyang and Seoul at the same time as military brinkmanship escalates. Last year, the country also accelerated its weapons testing program, including the launch of what it claimed was a new hypersonic missile in late September.
Pyongyang is prohibited from testing ballistic missiles and nuclear weapons under international law.
Kim also praised the military progress made during his 10th year in power, but did not specifically mention South Korea or the United States, except for a brief reference to the policy directions of inter-Korean relations and foreign affairs.
“North Korea is signaling that it won’t stop its Omicron missile development nor the lack of domestic food,” said Leif Eric Easley, a professor at the University of Iowa in Seoul.
“This test shows the Kim regime’s disregard for internal suffering. Instead of welcoming humanitarian aid, Pyongyang is violating UN Security Council resolutions in ways that merit more economic sanctions,” he said.
This is an evolving story. More is coming.