Investigations are trying to determine what caused one of the worst plane accidents in Pakistan's history, after a passenger jet crashed into a hillside north of Islamabad, the capital, killing all 152 people onboard. <br /><br />Reports suggest that airtraffic controllers told the pilot of the Air Blue plane to divert, due to bad weather. <br /><br />Forestry and military officials combed through the wreckage amid heavy rains. <br /><br />Yousuf Raza Gillani, Pakistan's prime minister, toured the damage on a helicopter and issued condolences to the families of victims. <br /><br />Al Jazeera's Kamal Hyder reports from near the crash site.
