SCOTTSDALE, AZ - Police say a lockdown at Desert Mountain High School has been lifted after an anonymous threat Tuesday afternoon.
According to Scottsdale police, a person with a digitally altered voice called the 911 call center around noon.
The person said there was a bomb at Desert Mountain and Chaparral high schools.
An unattended backpack was found in one of the bathrooms at Desert Mountain, and the school went on lockdown.
A similar situation occurred at Chaparral, but that campus did not go on lockdown, police said.
The backpacks were reportedly deemed safe.
Police increased staffing on campus for the rest of the school day.
In Tempe, a teacher at Fees College Preparatory Middle School found a threatening note at the school Tuesday morning.
Tempe police said officers did not find any immediate threats on campus.