North Korea test-fired ‘ballistic missiles’

Al Jazeera :
North Korea has test-fired short-range “ballistic missiles” towards the Sea of Japan, the South Korean military said a day after it conducted joint drills with the United States using stealth fighter jets to simulate air combat.
In a brief statement on Friday, South Korea’s Joint Chiefs of Staff said the launches were made from North Korea’s eastern coast region of Wonsan and that the country had bolstered its surveillance posture and was maintaining readiness.
The statement did not provide further details of the latest launches but added that an analysis was under way.
On Thursday, two South Korean F-35As and two US F-22 Raptors conducted aerial exercises over the central region of South Korea. Such drills infuriate North Korea, which views them as rehearsals for invasion.
While the South’s military did not specify the latest type of weapon, North Korean state media reported that its military has been testing multiple launch rocket systems that are being upgraded.