 The TTP also began to steal vehicles belonging to government officials and ransacked the offices of some local non-government organisations for no apparent reason.12 schoolchildren were killed by a bomb contained in a football.On 26 April 2009, the unified Pakistan Armed Forces started the strategic and tactical airborne attack, codename "Black Thunderstorm", with the aim of retaking Buner, Lower Dir, Swat and Shangla districts from the TTP.