By BOB CHRISTIE and FELICIA FONSECA / Associated Press
PHOENIX (AP) -- Arizona authorities say a package addressed to Sheriff Joe Arpaio would have exploded if opened, leading to serious injuries or death.
Maricopa County Chief Deputy Jerry Sheridan made the comment Friday at a news conference in Phoenix.
The package intercepted in Flagstaff late Thursday was addressed to Arpaio at his downtown Phoenix office. It had been left in a parcel locker in a rural part of Coconino County.
U.S. Postal Inspection Service spokesman Keith Moore says a courier brought it into the main Post Office in Flagstaff, and authorities used a water cannon to neutralize the package.
Arpaio, the self-proclaimed "toughest sheriff in America," says this isn't the first time he's been threatened.
Authorities in Flagstaff are pursuing leads in the case.