It occurred in Flintstone, Allegheny County.
The Maryland State Fire Marshal's Office has charged two, 15-year-old boys with making soda bottle bombs. Authorities say the explosives were set off Monday night in the 21000 block of National Pike in Flintstone, in Allegheny County.
Natural Resources Police originally responded to the scene at around 7:50 PM to investigate reports of gunfire. After finding exploded soda bottles, they called in the State Fire Marshal's Office.
An investigation by both agencies determined that the youths were responsible for setting off the devices.
The teenagers were referred to the Allegheny County Department of Juvenile Services. They could face felony charges of manufacture, possession and distribution of destructive devices.
The two were released to the custody of their parents.
"The construction of these homemade explosives is not only illegal, but the destructive effect and potential for serious bodily injury or even death is extremely high," says Maryland State Fire Marshal William E. Barnard, in a statement.