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A man killed two men and one woman Friday in central Pennsylvania, then died in a gunfight with state troopers, CNN reported, citing authorities. 

The first report of shots fired "at multiple locations" in Frankstown Township came in a 911 call placed around 9 a.m., Pennsylvania State Police Lt. Col. George Bivens said. As state troopers converged on the area, someone in a truck -- going the opposite direction on a two-lane road -- fired at two marked patrol cars.

The truck's driver continued driving and then "rammed ... head-on" into a different patrol car, Bivens said. He then got out of his vehicle and began firing at officers.

State troopers returned fire, eventually killing the truck's driver.

Three state police members were hurt in the response. One was struck in the wrist by bullet fragments and in his chest -- which was protected by body armor -- by a bullet. Another trooper got glass fragments in his eyes and bullet fragments in his forehead. The third suffered minor injuries in the car accident with the shooter's truck.

By 10 a.m., the "active shooter situation" in Frankstown Township, about 7 miles southeast of Altoona and 100 miles east of Pittsburgh was under control, the Blair County Emergency Management Agency reported on its Facebook page.

But the gruesome story wasn't over. After this episode played out, authorities discovered three slain people at three different locations.

One woman was killed at Juniata Valley Gospel Church, one man was found dead in a residence, and another man was killed after getting into a car accident with the truck's driver. All three had been shot.

Authorities have not identified the shooter or the victims.

No explanation has been given for the bloodshed.