Arizona ? Federal authorities have arrested two men in a series of rapes of girls whose attacker posed as a police officer on the Fort Apache Indian Reservation.

Last week, a task force with the Bureau of Indian Affairs took 29-year-old Jimi Aday into custody on charges of kidnapping and aggravated sexual contact.

The task force arrested Jesse Dupris, 26, and Jeremy Reed, 23, on Friday night, said Warren Youngman, a BIA spokesman. They were being held on charges, including abduction, unlawful restraint, public sexual indecency, sexual conduct with a minor, molestation of a child, impersonating a tribal officer and assault with intent to cause serious physical injury.

What relationship, if any, exists between Aday and the other two men was not immediately clear.

Since November 2005, a man posing as a police officer raped 15 girls ranging from 11 to 19 years old on a trail in Whiteriver, the capital of the White Mountain Apache Indian Tribe, authorities said. The man told the girls they were under arrest, handcuffed them and then raped them.