Students evacuated from Tucson High after threat

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Update: The McKale Center location has been changed to Bear Down Gym

TUCSON, Ariz. (AP) — About 850 students at Tucson High School are out of school after a threat to the campus was made on Tuesday morning.

Tucson police spokesman officer Chuck Rydzak (rid-'ZAK) says a bomb threat was made just before 9 a.m. and students were evacuated to the football field.

He says the school is now allowing students who drive to school to go home with a parent's permission. Those with special needs were taken to Roskruge School. The rest, including all who walk to school, are dropped off or take city or school buses, are being taken to the Bear Down Gym at the University of Arizona.

Five explosive-sniffing dogs are searching the campus, which is expected to reopen by 3 p.m.

Rydzak says police don't know if the threat was credible but wanted to make sure the school was safe.