sentences:  Chechnya Spetsnaz base explosion
  
  The Chechnya Spetsnaz base explosion was the February 8, 2006, blast at the Russian Defense Ministry's special security unit barracks at Kurchaloi near Grozny, Chechnya, which killed at least 13 Russian special forces troops and injured 28 more, according to the official statement.The two-story building, which collapsed, housed unit of about 200 GRU servicemen, of which some 43 were believed to have been inside at the time of the explosion.