A high-profile human rights activist said he launched nearly two dozen balloons carrying medicine and anti-regime messages into North Korea late last week after South Korea’s Supreme Court ruled in his favor in a case about his cross-border leafleting.

Park Sang-hak and his group Fighters for a Free North Korea (FFNK) launched the balloons carrying anti-DPRK posters, vitamins and painkillers toward North Korea on May 5, according to photos and videos seen by NK News on Monday, likely violating a ROK law that prohibits such activities at the border.