Islamabad ? A passenger jet that officials suspect veered off course in monsoon rains and thick clouds crashed into hills overlooking Pakistan’s capital Wednesday, killing all 152 people on board and scattering body parts and twisted metal far and wide.

The Airblue jet’s crash was the deadliest ever in Pakistan, and just the latest tragedy to jolt a country that has suffered numerous deaths in recent years because of al-Qaida and Taliban attacks. At least two U.S. citizens were on the plane, which carried mostly Pakistanis.

The plane left the southern city of Karachi at 7:45 a.m. for a two-hour flight to Islamabad and was trying to land when it lost contact with the control tower, said Pervez George, a civil aviation official. Airblue is a private airline based in Karachi, Pakistan’s largest city.

The aircraft, an Airbus A321, crashed some 9 miles from the airport, scorching a wide stretch of the Margalla Hills.

The exact cause of the crash was not immediately clear, but Defense Minister Chaudhry Ahmed Mukhtar said the government did not suspect terrorism.