Ethnic clashes of Târgu Mureș
The ethnic clashes of Târgu Mureș (also called Black March, Hungarian: Fekete Március) refer to incidents between the Hungarians and Romanians in Târgu Mureș and surrounding settlements in Transylvania, Romania in March 1990. The clashes were the bloodiest inter-ethnic incidents of the post-communist era in Transylvania.
Source: Wikipedia — Ethnic clashes of Târgu Mureș (CC BY-SA 4.0)