PHOTOS: Thick smoke billows from 2-alarm fire in Pittsburgh
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Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Building collapses in 2-alarm fire in Pittsburgh Firefighters work to put out a 2-alarm fire in a collapsed building in Pittsburgh's Troy Hill neighborhood.
Smoke billows from 2-alarm fire in Troy Hill Firefighters put water on the fire as the building collapses. (Pittsburgh Public Safety)
Smoke billows from 2-alarm fire in Troy Hill Firefighters put water on the fire as the building collapses. (Pittsburgh Public Safety)
Smoke billows from 2-alarm fire in Troy Hill Firefighters put water on the fire as the building collapses. (Pittsburgh Public Safety)
Smoke billows from 2-alarm fire in Troy Hill Firefighters put water on the fire as the building collapses. (Pittsburgh Public Safety)
Smoke billows from 2-alarm fire in Troy Hill Smoke from the fire is seen across the river in the Strip District.
Smoke billows from 2-alarm fire in Troy Hill Smoke from the fire is seen in East Allegheny.
Smoke billows from 2-alarm fire in Troy Hill
Smoke billows from 2-alarm fire in Troy Hill Smoke from the fire is seen across the river in the Strip District.
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