 Following the Lal Masjid Siege, the first outpost was attacked and overrun by the militants resulting in the capture of 12 Pakistani soldiers.The next day on 13 September 2007, a suicide bomber in Tarbela Ghazi attacked a Pakistan army base, destroying the main mess hall and killing 20 members of the SSG "Karrar" Commando Unit; Pakistan's most elite army unit.A series of attacks ensued and by 20 September 2007, a total of five Pakistan Army military outposts had been overrun and more than 25 soldiers captured.