Multiple children killed in house explosion near Philadelphia

Officials say five people, including four children, were killed when a house exploded in a small community outside of Philadelphia on Friday.

The children –  ages eight to 18 – died alongside a 67-year-old woman, local station WPVI reports. Two other individuals were injured in the blast, which occurred in the town of Pottstown. 

Authorities are still investigating the source of the explosion. The inquiry will reportedly last “for some time,” the news network said. 

The neighborhood in which the blast occurred reportedly offers gas lines for home hookups, though it is not known if that was the source of the explosion.