Updated at 11:25 KST to include assessments from a South Korean military official. Corrected 04/02 at 16:20 KST to state that an October 31 missile test was actually the last time Kim Jong Un was not reported to have attended such an event, in addition to the October 2 test.

North Korea’s Sunday morning missile test was carried out by the Academy of Defense Science as the country prepares a new weapons system for deployment, according to state media on Monday.