About the Author
Dagyum Ji
Dagyum Ji was a senior NK News correspondent based in Seoul. She previously worked for Reuters TV.
Updated at 1500/1930 KST: This article has been updated to include more details on Thursday's launch.
North Korea is believed to have fired two "new-type" short-range ballistic missiles off its coast on Thursday morning, South Korea's presidential National Security Office (NSO) said in a follow-up assessment to a reported test earlier in the day.