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MT HOOD, Ore. (CBS) — Authorities are investigating what they believe is the first-ever deadly cougar attack in Oregon.

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Authorities found 55-year-old Diana Bober’s body Tuesday after she’d been missing for nearly two weeks.

Bober was hiking in a forest when investigators believe she was attacked by the cougar.

Credit: CBS3

“Okay, so she didn’t just trip and fall. She fought a cougar. And, she fought pretty hard. They don’t think the cougar came back, she died of her wound,” said Diana’s sister, Alison.

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Officials say cougar sightings in the area are not uncommon, but attacks are extremely rare.

As a precaution, the trail will be closed, while agencies work to find the cougar.