Authorities say a 2-year-old Iowa boy somehow got outside of a relative's home in Wibaux, Montana on Christmas Eve and died of exposure as family members slept.

Dawson County coroner Tyler Silha says Michael Morgan's body was
found at about 6:30 a.m. Christmas Eve. The boy was taken to a hospital in Glendive, where he was pronounced dead.

The National Weather Service says temperatures at the time were 15 degrees below zero in the town, which is just across from the North Dakota border.

The boy and his parents, Mike and Ashley Morgan, ages 26 and 25, of Davenport, had traveled to Montana to spend Christmas with family. Authorities say the death was an accident.