CARSON CITY, Nev. (AP) -- Suspicious powder that prompted the evacuation of the Nevada Supreme Court was sent by an inmate at a southern Nevada prison.
A court spokesman on Friday confirms the letter addressed to the court was mailed by an inmate at High Desert State Prison in Indian Springs, 375 miles north of Las Vegas.
The inmate's name has not been released.
But a court spokesman says he has neither a pending nor previous case before the justices.
Four employees near the envelope when it was opened were isolated as a precaution on Thursday before a hazmat team determined it was not hazardous. The letter indicated it was anthrax.
The incident raises questions about the handling of outgoing inmate mail. The Department of Corrections did not immediately respond to requests for comment.