On 27 December 1979, about 700 Soviet troops took over major government and military buildings at Kabul. The troops wore uniforms similar to the Afghan Army. At 7:00 pm, the Soviet troops destroyed Kabul's communications and stopped all communication among Afghan troops. At 7:15 pm, Soviet troops entered Tajbeg Palace. By morning of 28 December, the first part of the military action was over. Amin and his two sons had been killed.