Students of Cupertino High School returned to class Wednesday after a "threatening robo call" prompted an emergency evacuation Tuesday afternoon.
The campus increased security presence and offered counseling to students following the threat.
The Santa Clara County Sheriff said that a "robotic call was received by the school threatening harm around 1 p.m. After further investigation, the Sheriff's office said the phone number linked to the robo call traced back to similar incidents reported nationwide.
Assistant Superintendent, Tom Avvakumovits, said the threat was made while students were at lunch prompting the decision to quickly evacuate the school to "prioritize student safety."
Cupertino High School Senior, Kayshav Prakash, was waiting with a friend in his car for the next period to start when he saw floods of students running out of the campus.
"We just got out and ran with a whole pack of people running and went to a house across the street from the school,' said Prakash.
While waiting for the all-clear from officers, Prakash described the evacuation as "really terrifying" in light of the recent school shootings in the country.
"My instinct was just to run. It was really clear we needed to just get off," said Prakash.
Officers on scene said there is no indication of any danger to the school or the nearby community. "Matter under investigation," the tweet said.
Tweets on social media indicated that students were evacuated and some were outside the school. Nearby streets were blocked off by police.
An evacuation notice was sent out via emergency alert system, which contacts parents via phone call and e-mail. Some parents already picked up their children from the school.
There is a large Sheriff's Office presence at Cupertino HS in @CityofCupertino. A "robotic call" was received by the school threatening harm. The Sheriff's Office is on-scene and there is no indication there is any danger to the school or nearby Community. Matter under invest.— SantaClaraCoSheriff (@SCCoSheriff) March 27, 2018
“Our decision was to evacuate the school because we wanted prioritize student safety:” Assistant Superintendent, Tom Avvakumovits, explains the emergency evacuation at Cupertino High School. https://t.co/yHykZbH3Z7 pic.twitter.com/uq4Aua0drt
— Jennifer Gonzalez (@JennieGonzMedia) March 27, 2018
“We just got out and ran:” Kayshav Prakash, a senior at Cupertino High School, explains the frightening moment he realized there was an emergency evacuation. https://t.co/yHykZbH3Z7 pic.twitter.com/7oPcopJ2pK— Jennifer Gonzalez (@JennieGonzMedia) March 27, 2018
“It was really terrifying:” Kayshav Prakash, a senior at Cupertino High School, describes how scared he felt during the emergency evacuation in light of the recent school shootings. https://t.co/yHykZbH3Z7 pic.twitter.com/mRaUSDxKxI— Jennifer Gonzalez (@JennieGonzMedia) March 27, 2018