Search For Missing Colorado Mom Kelsey Berreth Spreads To Idaho

Authorities in Idaho are now on the search for missing Colorado mom Kelsey Berreth, RadarOnline.com can report.

The development comes days after the missing mother's fiance, Patrick Frazee, was arrested in connection to her disappearance. According to FOX 31 Denver, the FBI contacted the Twin Falls Police Department and Twin Falls County Sheriff's Office in Idaho on December 15 to ask for assistance with the investigation.

A press release stated that detectives from both Idaho agencies are working with the Colorado Bureau of Investigations and the FBI to "prepare and serve several search warrants."

The release also stated that the Idaho authorities are working to process "items of evidence."

The mother of two has been missing since Thanksgiving Day. As RadarOnline.com reported, video emerged of Berreth, 29, entering a Safeway grocery store in Woodland Park on the November holiday with her baby.

Berreth's boss received a text from her three days after she was last seen alive. The message informed the boss that Berreth would not be at work for the next week.

Frazee told cops Berreth dropped their one-year-old daughter off with him after visiting the grocery store.

Frazee was arrested on suspicion of first-degree murder and conspiracy to commit first-degree murder.

She is presumed to be dead.

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