Her body was found hours later by her boyfriend after she failed to return home.

A Colorado woman was found dead on Friday of an apparent black bear attack in Durango, says Colorado Parks and Wildlife (CPW).

The unidentified woman, 39, was discovered by her boyfriend after she didn't return home from walking her two dogs.

Jason Clay, a spokesman for CPW, said the woman had gone for a morning walk and that her boyfriend didn't arrive home until 8:30 p.m., only to find the dogs outside. He went searching and found her body an hour later.

An autopsy will take place this week to determine the official cause of death.

"Wildlife officers responded and observed signs of consumption on the body and an abundance of bear scat and hair at the scene," Clay said in a statement.

A dog team was brought in from the U.S. Agriculture Department's Wildlife Services to do a search of the area, and they were able to find a female black bear and two cubs nearby. The three bears were euthanized; they'll be taken to CPW's Wildlife Health Lab in Fort Collins for a necropsy.

"Bear attacks are extremely rare," said Cory Chick, CPW's regional manager. "This is a tragic event and a sad reminder that bears are wild and potentially dangerous. Out of an abundance of caution, the bears were removed for public safety."

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