The first incident occurred on 17 December 1990 in Eišiškės. Shift leader Petras Pumputis was beaten, lost consciousness, and was taken to a hospital with a cerebral hemorrhage. The first organized attacks were organized following the events of 11–13 January 1991 in Vilnius when 14 civilians were killed near the Vilnius TV Tower. Soviet troops attacked and burned border posts in Medininkai and Lavoriškės on 27 January. On 1 March, OMON troops fired at a border guard bus returning from Vilnius. Three Lithuanian guards were injured.