Police said several people are in custody.
The Philadelphia Fire Department said they took one person to Children’s Hospital of Philadelphia. Fire officials said the person went home first and then was taken to CHOP.
No word on the extent of injuries or the exact number of victims.
A Philadelphia police spokesperson said parents looking to reunite with their children can meet with police at Sister Clara Muhammad School at 47th Street and Wyalusing Avenue.
Police are expected to provide more information at a media stage area at Belmont and Girard avenues.
This is a developing story and will be updated.