The Wiki - article calls it "
2010 South Kyrgyzstan riots" but with maybe 700+ dead I'd call it a conflict that covers the whole nation and not a riot.
Q&A: Kyrgyzstan's ethnic violence
Both Russia and the US have a stake in the issue, the area is close to Russia and the
US has a military base there which at one point was 'closed' due to the conflict. The base is vital in keeping US's war in Afghanistan going.