By Fred Burton and Scott Stewart Friday June 13 turned out to be an unlucky day for the guards at Sarposa prison in Kandahar, Afghanistan. At approximately 9:20 p.m. local time, some 30 Taliban insurgents launched a complex and highly coordinated attack on the facility. The operation freed all 1,100 inmates incarcerated there, including a reported 350 to 400 Taliban militants. The attack also resulted in the deaths of several guards — reports on the actual number vary between six and 15. The assault reportedly began with the detonation of a massive vehicle-borne improvised explosive device (VBIED) at the prison’s main gate. The suicide device reportedly was concealed inside a tanker truck and, according to a Taliban spokesman, contained 1,800 kilograms of explosive material. The powerful device shattered the prison’s front gate and guardhouse, causing substantial damage to shops and other buildings in the neighborhood.