A 16-year-old girl living on the Navajo Nation Reservation in southern Utah was recently charged by the U.S. Attorney's Office with two counts of involuntary manslaughter.

The girl allegedly was driving a vehicle while under the influence of alcohol on the reservation, causing an accident on Feb. 19, according to a news release issued by the attorney's office.Two people were killed in the accident.

If found guilty of involuntary manslaughter, the girl could be sentenced to prison until she is 21, the release stated. The charges, filed May 20, have been sealed.

Because the incident occurred on the reservation, the incident was investigated by the FBI, resulting in a longer investigation than crimes investigated by police, said Melodie Rydalch, spokeswoman for the law enforcement coordination committee.

"We hope this case sends a strong message to others that driving while drunk is a serious offense that can have very serious consequences," said David Schwendiman, U.S. attorney. "It is particularly tragic when the driver or the victims are young people."