Federal prosecutors on Monday charged a 22-year-old U.S. Army private with plotting to attack his own military unit abroad by sending sensitive details about the unit to a neo-Nazi group.

The Justice Department said Ethan Melzer of Louisville, Kentucky, had sent details about his unit's location, planned movements and security to members of the Order of Nine Angles (O9A), which the department described an "an occult-based neo-Nazi and white supremacist group."

Melzer is charged with conspiring and attempting to murder Americans and U.S. military service members, providing and attempting to provide material support to terrorists and conspiring to murder and maim in an undisclosed foreign country.