Article in Korean, use Google translate. A cafe in Seoul has banned Chinese customers, not even because of any known incidents but because supposedly, "everyone's mood goes down as soon as a Chinese customer walks in." Korea has no anti-discrimination laws, so such actions are legal and many Koreans say more of the country's businesses should do the same.
I'm starting to think Jakarta 1998 could come to pass in Korea in the near future. Hopefully the Party could have a plan in place, in case that happens.