The University of Colorado Boulder, which is close to Boulder High’s campus, issued an emergency alert saying police are investigating a report of a person with a gun.
Boulder High is on a planned delayed start schedule, with the campus mostly occupied by teachers doing administrative work. Classes weren’t scheduled to start until 9:45 a.m.
The perceived threat at Boulder High is among multiple that police are investigating statewide.
Brighton Police were investigating a “threatening call from an unknown person” at Brighton High School but did not find it credible. Aspen School District was also briefly on lockdown as the Pitkin County Sheriff’s Office investigated reports of shots being fired in the vicinity. All schools were later cleared of the threat.
Police deemed a threat against Cañon City High School a “false report.”
Herold said she doesn't have the full details, but speculated the threats were connected due to all of them happening in a relatively short timeframe.
"It appears, though within short order, schools across the state of Colorado received a call," she said. "It seems like it was a systematic way of calling schools."
This is a developing story and will be updated.