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Police said the mother bear and her three cubs were found in a nearby tree, and the mother bear was euthanized when she became aggressive. Police said the cubs were tranquilized before wildlife officials moved them to an unknown location.

In an interview with KDKA in Pittsburgh, Wildlife Regional Director Jesse Bish said it’s unclear which of the bears attacked the woman.

“It’s kind of hard to tell whether one of them wasn’t one that grabbed ahold of the victim also, so we may decide to euthanize those three also, just for the safety of the public,” Bish said.

One of the victim’s neighbors, Michael Vero, told the Associated Press it “was nerve-wracking to hear her screaming” during the attack.

Vero said bears had been in the neighborhood for a few weeks and he was nervous for his children’s safety.

Butler Township Police Sergeant Thomas Vensel told KDKA the attack was the first of its kind for him and the area.

“Talked to some people that they’ve been seeing them in the area,” Vensel told the station. “Obviously, there was a bird feeder up here that was knocked down. We’ve had warm weather lately, so I’m assuming these animals are out and about.”

While bear attacks remain rare, Pennsylvania wildlife officials recommend doing the following if you encounter one:

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