A high-profile defector-activist has vowed to launch more anti-regime leaflets unless North Korean leader Kim Jong Un apologizes for floating trash and feces into the South, hours after the DPRK said it would restart its balloon blitz if leafleting resumes.

Monday’s statement by Park Sang-hak, the head of the Fighters for a Free North Korea, came as Seoul reiterated its position that it does not have the authority to stop balloon launches by private citizens, setting the two Koreas on a collision course over the leaflet issue once again.