BOULDER, Colo. — Boulder High School was on lockdown Wednesday morning as police investigated an unconfirmed report of an active shooter. No victims have been located.
Boulder Police Chief of Police Maris Herold said the call came in at 8:33 a.m. to the University of Colorado Boulder's non-emergency dispatch line.
“I have listened to this 911 call. It is very scary. In the background, you can actually hear shots being fired,” Herold said. “We had a caller relay that he was out in front of Boulder High School. He had a semi-automatic weapon and that he was prepared to go into high school. Shortly thereafter, there was active shooting, very realistic gun sounds in the background.”
She said it sounded like a very authentic call.
Officers were at the school within three minutes, Herold said.
They cleared the entire school. K-9 units were also brought to the scene because of reports of possible bombs in the school. After determining there was not an active shooter, they searched the front of the school. Herold said they did not find any evidence of bullets.
“It’s a terrible situation to put students into," Herold said. "Very scary for parents involved and the community at-large.”
Herold said she is aware of other Colorado schools that had similar threats on Wednesday morning.
READ MORE: Several Colorado school districts receive threats Wednesday morning, placing many students under lockdowns
Boulder High School was on lockdown for much of the morning and there was a heavy police presence around the school. The school is just northwest of the University of Colorado Boulder, south of Canyon Boulevard and east of Broadway.
At 9:39 a.m., police said they were clearing the school but had not found any victims. About 20 minutes later, police said busses were en route to evacuate students to a reunification center at Macky Auditorium on CU Boulder's campus, located at 1595 Pleasant Street. Adults picking up students should bring some form of identification if possible.
After-school activities are canceled.
A shelter-in-place order was sent out to residents in the area highlighted in red below during the initial investigation, police said. That order was lifted around 11 a.m.
Police were allowing cars to drive by the school early on in the investigation.
No other details were immediately available. Stay with Denver7 for updates.