Boulder High School and Boulder Preparatory High School were placed under secure status Wednesday morning after police received a report of another phone threat, the Boulder Valley School District confirmed.
Like the phone threat made to Boulder High School on Feb. 22, the latest threat was received by the University of Colorado Boulder Police Department, which forwarded the report immediately to the Boulder Police Department, the school district said in a letter to the community.
Both high schools went into secure status between 10-10:15 a.m., officials said.
“During a SECURE, students are brought indoors and staff ensure that doors are locked, but activities, including learning, continue as normal inside,” the district’s letter read. “Once police were able to confirm that the call matched what had been received a week ago, the SECURE was lifted.”
The district said the phone threat “appears to be another swatting call.”
Police received a report of an active shooter at Boulder High School a week ago, which was determined to be unfounded, said Boulder Police Chief Maris Herold. The caller claimed he was outside the school with guns, and was prepared to go inside, she said.
“I have listened to this 911 call — it is very scary,” the police chief said during a news conference after the school lockdowns.
More than a dozen schools across Colorado, and schools in other states, received similar threats, state officials confirmed.
“This is the second time that we’ve received this type of threat in the past week and given examples in other parts of the country, it is possible we may receive more in the future,” Boulder Valley School District’s letter read. “We will be working with our law enforcement partners to continue to ensure that students and staff are safe, while doing everything possible to avoid causing unnecessary panic and concern.”
Police are working with the FBI to investigate the phone threats.
