Monday’s missile is believed to have been a Scud-class ballistic which flew about 450 km and landed in the sea off its own coast.
Japan’s Prime Minister Shinzo Abe has vowed action to deter Pyongyang’s repeated provocations.
“As we agreed at the recent G7 summit, the North Korean problem is a top priority for the international community. In order to restrain North Korea, we will take specific action together with the United States,” he told the media.
At the recent G7 summit in Italy the leaders described North Korea’s recent nuclear and missile tests as a grave threat.
They warned the North that it must fully comply with all relevant UN Security Council Resolutions and abandon all nuclear and ballistic missile programs.