Pyongyang on Tuesday urged the South Korean government to “apologize” for a recent anti-North Korean rally in Seoul, threatening to renege on inter-Korean agreements concerning its participation in the upcoming Winter Olympics.

Monday saw a rally in central Seoul by the far-right burn a photo of DPRK leader Kim Jong Un, the North’s national flag, and the Korean unification flag.

The protest was in opposition to the North’s participation in the PyeongChang Winter Olympics and a two-day visit to the South by Hyon Song Wol, head of the DPRK’s Samjiyon Orchestra.

In response, North Korea’s Committee for the Peaceful Reunification