PYONGYANG (Al Jazeera) – North Korea has fired two short-range ballistic missiles towards the eastern waters of the peninsula — the seventh launch in two weeks of weapons tests after South Korea and the United States concluded their latest round of naval drills.
South Korea’s Joint Chiefs of Staff said Pyongyang fired the two missiles from the Southeastern coastal city of Munchon early on Sunday. The first was fired at about 1:47am local time (16:47 GMT) and the second one some six minutes later.
The Japanese government also said North Korea had fired what appeared to be ballistic missiles.
The two missiles reached an altitude of 100km (60 miles) and covered a range of 350km (217 miles), Japan’s State Minister of Defense Toshiro Ino told reporters.
Both fell outside Japan’s exclusive economic zone, and authorities were looking into what kind of missiles were launched, including the possibility that they were submarine-launched ballistic missiles, he said.
North Korea has carried out an unprecedented number of weapons tests this year, including its biggest-ever intercontinental ballistic missile (ICBM), as North Korean leader Kim Jong-un steps up efforts to modernize and expand the country’s military capabilities.
The most recent launches have taken place around military exercises held by the U.S., South Korea and Japan, with naval drills involving the nuclear-powered aircraft carrier USS Ronald Reagan wrapping up on Saturday.
Sunday’s launch also came on the eve of the 77th anniversary of the founding of North Korea’s ruling Workers’ Party, a major event for Pyongyang.
On Saturday, North Korea’s Defense Ministry warned that the redeployment of the 103,000-tonne Ronald Reagan, which was sent back to the seas around the Koreas after Pyongyang fired a powerful missile over Japan, was causing a “considerably huge negative splash” in regional security.
It said its recent missile tests were a “righteous reaction” to the military drills by its rivals.
“Our missile tests are a normal, planned self-defense measure to protect our country’s security and regional peace from direct U.S. military threats,” said state media KCNA, citing an aviation administration spokesperson.
North Korea regards U.S.-South Korean military exercises as a rehearsal for invasion and is especially sensitive if such drills involve U.S. strategic assets such as an aircraft carrier.
North Korea says it was forced to pursue a nuclear weapons program in response to U.S. “hostility” and necessary for self-defense.