Says the threats do not deter him from his work.
By AP Staff: PHOENIX (AP) -- A sheriff in Arizona known for his anti-immigration policies says his office is investigating a report of a $1 million bounty on his head.
A spokeswoman for Maricopa County Sheriff Joe Arpaio says the report was relayed by the FBI and by a caller who told Fox affiliate KSAZ-TV in Phoenix that the threat was from a Mexican drug cartel.
Phoenix is the seat of Maricopa County.
Lisa Allen says it wasnt known whether the threat actually came from a drug cartel but authorities believe it was made using a disposable cell phone in

Mexico.
Arpaio says its not unusual for him to receive death threats as sheriff and an outspoken advocate of immigration enforcement.
He says the threats do not deter him from his work.