Staropromyslovsky massacre

The Staropromyslovsky massacre occurred between December 1999 and January 2000 when at least 38 confirmed civilians were summarily executed by Russian federal soldiers during an apparent spree in Staropromyslovsky City District of Grozny, the capital of the Chechen Republic, according to survivors and eyewitnesses. The killings went unpunished and publicly unacknowledged by the Russian authorities.

Source: Wikipedia — Staropromyslovsky massacre (CC BY-SA 4.0)