State and county criminal investigators are trying to figure out why a 2-month-old girl has died in a northwestern Minnesota home and who might be responsible.

A Red Lake County sheriff's deputy was called to an apartment building Wednesday night in Red Lake Falls, about 20 miles south of Thief River Falls, on a report that the baby was not breathing, according to the Sheriff's Office.

A neighbor was holding the girl when the deputy arrived and began cardiopulmonary resuscitation, the Sheriff's Office said. The infant was taken by ambulance to a hospital in Thief River Falls and then flown to a hospital in Fargo, where she was put on life support.

On Friday, the Sheriff's Office announced that the baby, whose identity has not been released, had died. Announcement of autopsy results is pending.

No arrest has been made, and the state Bureau of Criminal Apprehension and the Sheriff's Office are offering no further details about what led to the death.

The baby's mother has been serving time in the Shakopee prison, and a relative of the mother had been the infant's primary caregiver since birth, the Sheriff's Office said.

The relative and baby recently moved to Red Lake Falls, the Sheriff's Office said.