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Death toll from collapse of factory building in Pakistan rises to 53 as rescuers clear debris

Pakistani army troops and rescue workers clear rubble of a collapsed building to recover bodies in Lahore, Pakistan, Saturday, Nov. 7, 2015. An official said rescue crews were carefully cutting steel and picking through concrete on Saturday to reach several workers believed to be still trapped. The building caved in just over a week after a magnitude-7.5 earthquake hit Pakistan, damaging nearly 75,000 homes. (AP Photo/K.M. Chaudary)

Pakistani army troops and rescue workers clear rubble of a collapsed building to recover bodies in Lahore, Pakistan, Saturday, Nov. 7, 2015. An official said rescue crews were carefully cutting steel and picking through concrete on Saturday to reach several workers believed to be still trapped. The building caved in just over a week after a magnitude-7.5 earthquake hit Pakistan, damaging nearly 75,000 homes. (AP Photo/K.M. Chaudary)  (The Associated Press)

A Pakistani official says the death toll from the collapse of a factory building last week has risen to 53.

Jam Sajjad Hussain said Monday that rescuers have sifted through nearly all the debris from the collapse of a four-story building in the eastern city of Lahore.

Rescuers have retrieved 100 living workers from the rubble, including a teenager whose family assumed he was dead.

The cause of Wednesday's collapse is yet to be determined.

The building caved in a week after a powerful earthquake in neighboring Afghanistan killed nearly 400 people in both countries.