An apparent explosion rocked a residential neighborhood in Philadelphia on Tuesday, causing the front wall of a residential row home to collapse and damaging those of two others, according to local authorities and NBC Philadelphia.
The Philadelphia Fire Department shared an image of the damage on Twitter and warned people nearby to avoid the 6300 block of Algard Street in the city's northeastern Wissinoming neighborhood.
A 61-year-old man was transported to a hospital to be treated for his undisclosed injuries, and a second man was treated for smoke inhalation, according to NBC News Philadelphia.
A tweet from the Philadelphia Fire Department's alert account declared a fire in the vicinity to be "under control" as of 2:05 p.m.
In a social media post detailing the incident later on Tuesday, PFD said that over 60 members responded to a fire in the neighborhood where a home had a collapsed facade "and heavy fire on the second floor."
In an email, the PFD confirmed that fire fighters responded to a report of an explosion.
"Officially, the Fire Marshal's Office/Philadelphia Gas Works have to confirm whether an explosion occurred; that investigation is ongoing," Kathy Matheson, a PFD spokesperson, said in an email to NBC News.