Local broadcaster
TOLOnews reported that the attack involved a
suicide bomber detonating a vehicle laden with "hundreds of kilograms of explosives" and the militants then making their way into the compound of "Department 10" of the
National Directorate of Security (NDS) and opening fire. The bomb that detonated caused a ceiling to collapse in a classroom where elite intelligence officers were being trained. An Afghan security official said members of that unit accounted for about half of the people killed. The local broadcast station said that a two-hour gun battle ensued between the militants and security forces. == Developments ==