Officials from South Korea’s Gyeonggi Province visited the house of a North Korean defector-activist on Wednesday and alerted him of a new administrative order banning high-pressure gas normally used to fuel balloon launches.

The administrative order — which is Gyeonggi Province’s first case of formally prohibiting activists from sending propaganda leaflets to North Korea — also includes an entry ban into several designated “danger zones” and the total prohibition on the preparation, transportation and scattering of leaflets in the area.

Officials “uncovered the residence of Lee Min Bok” — a North Korean defector who heads the Campaign for Helping North