South Korea will move to revoke the corporate permits of two defector-run NGOs regularly sending anti-regime leaflets across the border into North Korea, Seoul’s unification ministry said Wednesday.

The move follows multiple high-level statements by North Korea in recent days condemning Seoul’s failure to stop the leafleting and Pyongyang’s decision to cut off all inter-Korean communication lines as of Tuesday noon.

“Today, the government has decided to file a complaint against Fighters for a Free North Korea (FFNK) and Keunsaem for violating South-North Exchange and Cooperation Act,” unification ministry spokesperson Yoh Sangkey