sentences:  Russian command claimed that a total of 150 military bases have been destroyed, along with 30 bridges, 80 vehicles and six radio transmitters, while 250 kilometers of mountain roads were mined.In early October the Chechen President Aslan Maskhadov said some 60-70 percent of the bridges in Chechnya have been destroyed.The air strikes quickly crippled Chechnya's stationary and mobile telephone system and hit the Chechen television station.