South Korean and U.S. intelligence authorities are reviewing the launches for more information.
The South Korean military said it has stepped up surveillance and surveillance of North Korea while working closely with the U.S. on maintaining defense readiness.
Japan’s Coast Guard said they believe the two missiles were launched five minutes apart, at 12:38 pm and 12:43 pm local time (11:38 pm and 11:43 pm ET).
Japan’s Ministry of Defense said North Korean projectiles are believed to have fallen into the water outside this exclusive economic zone.
North Korea is banned from testing ballistic missiles and nuclear weapons under international law. Previous such tests have met international opprobrium and sanctions from the United Nations Security Council.
Cruise missiles are propelled by jet engines. Like an airplane, they stayed close to the ground, making it difficult to see them. Most cruise missiles are not designed to carry nuclear warheads.
Ballistic missiles by comparison are only powered for a short part of their flight. They are fired in an arcing path that for longer range versions takes them out of Earth’s atmosphere, and they can handle heavier payloads such as nuclear warheads.