Japan on Tuesday lodged a strong protest against missile launches by North Korea, and warned that the world could and should expect further military threats from Pyongyang.
In a statement, Tokyo said that North Korea's missile launches violate UN Security Council resolutions, and vowed to step up coordination with South Korea, the United States and other related countries to deal with the matter.
Japanese Prime Minister Shinzo Abe on Tuesday directed relevant departments to thoroughly gather and analyze information on missile launches by DPRK, reports the Xinhua news agency.
Japan's Defense Minister Gneral Nakatani has also denounced the North Korean missiles launches as provocative acts that harm the peace and security of the global community.
North Korea reportedly launched three ballistic missiles Tuesday morning, following the launch of two last month, reports said.