FREDERICK, Colo. — Investigators believe the bodies of 4-year-old Bella Watts and her 3-year-old sister Celeste have been found, the Frederick Police Department said Thursday night.

Police believe they recovered the body of the girls’ mother, Shanann Watts, earlier Thursday.

Police did not disclose the location where the bodies were found, but said they were in close proximity to where the body believed to be that of Shanann Watts was found.

Shanann’s husband, Christopher Watts, is in custody under investigation for the deaths of the three.

While the bodies have not been officially identified, the Colorado Bureau of Investigation has deactivated their search for the three, who were reported missing on Monday.