PHILADELPHIA — A natural-gas explosion on a densely populated city block on Monday razed a row house and injured eight people, including two babies and a contractor, and sent dozens of neighbors pouring out of their homes.
Some neighbors fled for safety while others immediately set to work helping rescuers locate victims in the rubble.
The explosion and house collapse, which critically injured the contractor, came less than two months after the city was stunned by a collapse that killed six people at a downtown demolition site when a large wall fell on an adjacent thrift store.
Inspectors spent several hours at the scene of Monday's explosion and concluded that a gas leak was to blame for leveling the unoccupied home, which was being remodeled in the middle of the south Philadelphia street of connected two-story brick homes.
Bricks showered onto the small street and crushed a car parked out front. The houses on either side of the destroyed home were standing but badly damaged, with large sections of their masonry walls gone.
Neighbor Christie Scibblo feared the worst.
"I was in the shower, and I thought my house was about to fall down," said Scibblo, a 26-year-old mother of four who lives four houses down from the collapsed home. "I ran outside, and I saw a firefighter rescuing an infant."
Scibblo said she also saw firefighters hosing down a man who had been burned.