“Though a smaller North Korea SLBM design could enable more missiles per boat, it could also enable smaller less challenging SSB designs, including easier integration/conversion on pre-existing submarines,” Joseph Dempsey, a defence researcher at the International Institute for Strategic Studies, said on Twitter.
Still, the development was expected to have only a limited impact on Pyongyang’s arsenal until it made more progress on a larger submarine that has been seen under construction.
Chung Eui-yong, South Korean foreign minister, on Wednesday called for Washington to ease sanctions if the North returns to talks.
“Action must be taken as soon as possible to stop North Korea from further developing nuclear and missile capability,” he told parliament. “I think considering relaxing sanctions can surely be an option.”
The United States and Britain plan to raise the North’s latest test during a UN Security Council meeting on Wednesday, diplomats said.
The “new-type” SLBM was launched from the same submarine involved in a 2016 test of an older SLBM, North Korea’s state news agency KCNA said.
Photos released by KCNA appeared to show a thinner, smaller missile than North Korea’s earlier SLBM designs, and may be a previously unseen model first showcased at a defence exhibition in Pyongyang last week.