Students evacuated from Tucson High after threat

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TUCSON (AP) -- About 850 students at Tucson High School were evacuated from the school after a threat to the campus was made on Tuesday morning.

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

Students were taken to the McKale Center at the University of Arizona, a nearby school or allowed to drive home if their parents approved.

Five explosive-sniffing dogs searched the campus but found nothing and it reopened at about 2 p.m.

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