Bomb threats were made at three schools in the Vail School District Tuesday afternoon, police said in a posting X.
The three schools targeted were Desert Sky Middle School, Empire High School and Cienega High School.
The threats were similar and were made in a span of about 30 minutes.
The schools were evacuated as a precaution.
“We are following our standard procedures to ensure all students are safe and buildings are cleared before any return,” the district said on Facebook. “We are working hand in hand with law enforcement on this ongoing investigation.”
The phone threats were not credible, police said. "The school campuses were swept and nothing suspicious was located," said Officer Frank Magos, a Tucson police spokesman.