Downtown Philadelphia Building Collapse Killing 6, Injuring 14

Screen shot from ABC channel 6 in Philadelphia showing the before and after of the collapsed building.

A four-story empty building at 22nd and Market streets in the heart of Philadelphia’s busy Center City district collapsed in downtown Philadelphia burying a neighboring thrift shop in concrete and debris at around 10:45 a.m. EDT, Wednesday June 5, 2013.

The collapsed building was under demolition when it suddenly fell down on the thrift shop.

At least one man and five women were killed while fourteen others were injured in the disaster.

It was reported that those who were killed were inside the Salvation Army thrift store.

At a late night news conference Mayor Michael Nutter said:

“We still do not know how many people were inside the thrift store or possibly on the sidewalk. If someone else is in that building, they will find them.”

Authorities say the cause of the sudden collapse was still under investigation.

Please click the photos for larger images:

JUNE 5: Rescue workers search for victims and clear debris from a building that collapsed in an apparent accident at a demolition site, at 22nd and Market Streets, June 5, 2013 in Philadelphia, Pennsylvania. The building being demolished landed on top of a Salvation Army Thrift Store, destroying most of it and reportedly trapping and injuring over a dozen people. (Photo by Jessica Kourkounis/Getty Images)

Rescue personnel work the scene of a building collapse in downtown Philadelphia, Wednesday, June 5, 2013. A four-story building being demolished collapsed Wednesday on the edge of downtown, injuring 12 people and trapping two others, the fire commissioner said. Rescue crews were trying to extricate the two people who were trapped, and the dozen people who were injured were taken to hospitals with minor injuries, according to city Fire Commissioner Lloyd Ayers. (AP Photo/Jacqueline Larma)

Emergency personnel respond to a building collapse in downtown Philadelphia, where the city fire commissioner says as many as eight to 10 people are believed trapped in the rubble, Wednesday, June 5, 2013. (AP Photo/Dino Hazell)

Screen shot from ABC channel 6 in Philadelphia showing the before and after of the collapsed building.

Constructions workers help to clean the debris following a building collapse in Philadelphia June 5, 2013. REUTERS/Eduardo Munoz

Firefighters search through rubble following a building collapse in Philadelphia June 5, 2013. A building collapsed in downtown Philadelphia on Wednesday, killing a 35-year-old woman and injuring 13 other people under mountains of crushed concrete and splintered wood, officials said. REUTERS/Eduardo Munoz

Firefighters block the view while they search through rubble for a body following a building collapse in Philadelphia June 5, 2013. A building collapsed in downtown Philadelphia on Wednesday, killing a 35-year-old woman and injuring 13 other people under in mountains of crushed concrete and splintered wood, officials said. REUTERS/Eduardo Munoz

Firefighters and rescue workers search through rubble following a building collapse in Philadelphia June 5, 2013. A building collapsed in downtown Philadelphia on Wednesday and rescue workers pulled 12 people from the rubble and were trying to reach two others trapped beneath it, fire officials said. REUTERS/Eduardo Munoz

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 on Wednesday, June 5, 2013. A building that was being torn down collapsed with a thunderous boom, raining bricks on a neighboring thrift store, killing a woman and injuring at least 13 other people in an accident that witnesses said was bound to happen. (AP Photo/Jordan McLaughlin)