Philadelphia Building Collapse

In this photo provided by Jordan McLaughlin, a dust cloud rises as people run from the scene of a building collapse on the edge of downtown Philadelphia, Pennsylvania, June 5, 2013.

Rescue personnel search the scene of a building collapse in Philadelphia, Pennsylvania, June 5, 2013.

Rescue personnel evacuate an injured person from the scene of a building collapse in Philadelphia, Pennsylvania, June 5, 2013.

Rescue personnel search the scene of a building collapse in Philadelphia, Pennsylvania, June 5, 2013.

A rack of clothing in the destruction at the scene of a building collapse during a temporary halt to search-and-rescue operation, Philadelphia, Pennsylvania, June 6, 2013.