Five people, including a teenager, are dead after a house exploded Saturday morning in southwest Pennsylvania, officials said.

The explosion occurred in the area of Rustic Ridge and Brookside drives in Plum Borough, about 20 miles northeast of Pittsburgh, the Allegheny County government said on Facebook, adding that a 911 call came in shortly after 10:20 a.m. reporting “multiple injuries and several houses on fire.”

First responders found people trapped under debris and two homes “engulfed in fire,” in addition to one that appeared to have exploded and multiple others with the windows blown out, according to the post.