Defector activist grilled by police over anti-North Korea leafleting Posted : 2021-05-10 17:55 Updated : 2021-05-10 17:55 Park Sang-hak, the head of Fighters for a Free North Korea, speaks to reporters as he enters the Seoul Metropolitan Agency in central Seoul, May 10. Yonhap A vocal North Korean defector and activist known for flying anti-Pyongyang leaflets into the North by balloon was questioned by police on Monday over his recent claim to have sent leaflets, in the first violation of South Korea's anti-leaflet law that took effect in March. Park Sang-hak, the head of Fighters for a Free North Korea, a North Korean defectors' group, arrived at the Seoul Metropolitan Police Agency around 2 p.m. to be grilled as a suspect about his April 30 claim that his organization had sent a total of 10 balloons carrying around 500,000 leaflets, 500 booklets and 5,000 US$1 bills towards the North on two occasions earlier that week.