WINDOW ROCK, Ariz.?A 31 year-old woman has been arrested on the Navajo Reservation in connection with the New Year’s Day shooting deaths of the oldest three of her six children.

Elvira Charley, a tribal member, was arrested after calling tribal police about 12:30 p.m. Tuesday to tell them that she had hurt her children, FBI spokesman Ed Hall said in Phoenix.

Hall said authorities found 11- and 9-year old girls and a 10-year-old boy fatally shot when they arrived at Charley’s home in Klagetoh, northeast of Holbrook, about 26 miles north of Interstate 40 on Arizona 63.

The children were shot at least five hours before Charley called police, Hall said.

Two other girls and another boy found at the residence, all born between 1996 and 2000, were determined to be uninjured after being taken to a hospital.

They have been placed in a tribal shelter facility, Hall said.