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A fatal shooting among two teen boys in western Pennsylvania Sunday night has resulted in some serious criminal charges against the 14-year-old suspect.

(screen shot/WPXI)

UPDATE: Pa. teens were 'playing with gun' when boy, 13, is shot, killed

A fatal shooting among two teen boys happened around 8 p.m. Sunday in western Pennsylvania. Details remain sketchy, but this much is known: A 13-year-old boy is dead, and a 14-year-old boy is facing charges in the fatal shooting.

WPXI reports that it happened in Mount Pleasant Township, Westmoreland County.

Investigators have not said whether the shooting was an accident or intentional.

However, police did confirm to WPXI that the 14-year-old suspected shooter is facing charges of homicide and possession of a firearm by a minor.

The investigation continues, and more details will be forthcoming on the incident.