A four-storey building has collapsed in Philadelphia killing one woman and injuring 13 people.
The collapse involved a building that once housed a first-floor sandwich shop.
It collapsed during demolition, sending debris onto a Salvation Army store next door.
Rescuers used buckets and their bare hands to move bricks and rubble to search for survivors.
Witnesses said they heard a loud rumbling sound immediately before the collapse.
Carlton Williams of the city's Department of Licenses and Inspections said there were no existing violations on the building and the demolition company had proper permits for the work it was doing.
The accident happened at 10.45am local time between the city's business district and its main train station.
