Officials say an underground fire and explosion blew off a manhole cover and damaged a basement in Center City Philadelphia late Thursday night.
Firefighters responded to the electrical fire around 11:45 p.m. on the 1500 block of Sansom Street.
Crews located the fire in a basement inside a building.
PECO crews are investigating if a transformer sparked the fire.
There were no injuries reported.
Manhole cover blown off after underground fire, explosion in Center City