"N.Korea Tests New Guided Missiles to Reinforce 'Tactical Nuclear Operation' " by Ji Da-gyum from The Korea Herald

"My first impression is that it looks similar to the KTSSM. One can also say that it is a smaller KN-23/24. I believe it shares their trajectory characteristics, and it is also an aero-ballistic missile that flies at low altitude and can maneuver during flight."
Ji Da-gyum interviewed ONN Analyst Tianran Xu on the DPRK's tactical nuclear weapons delivery systems.