A view shows the testing of what local media call a super-large multiple rocket launcher in North Korea, in this undated photo released on March 28, 2020 by North Korea's Korean Central News Agency (KCNA). (Photo: KCNA via REUTERS)

Sunday's test was to verify tactical and technical characteristics of a super-large multiple rocket launcher, according to Rodong Sinmun, the North's official newspaper. It did not mention whether leader Kim Jong-un had observed the launch, nor did it elaborate on other details about the weapon or the place where the test was conducted.

South Korea’s military said Sunday that the missiles were fired from the eastern coastal city of Wonsan and flew 230 kilometers with a maximum altitude of 30 km.