BRUSH, Colo. — A suspicious device found near the Brush Secondary Campus late Sunday prompted a daylong school closure and investigation, but authorities have determined it posed no threat.

According to the Brush Police Department, officers were called Sunday evening after a report of an object resembling a pipe bomb. A perimeter was established, and nearby residents were notified while the Greeley Bomb Squad was called to assist.

The Brush School District closed all schools Monday as a precaution, with officers securing the secondary campus overnight. Superintendent Marsha Cody said the closure reflected “an abundance of caution and our commitment to ensuring a safe environment.”

Bomb technicians examined the device Monday and determined it was empty, made of piping and other discarded materials from a nearby residence. Police said there was no evidence of criminal intent or explosive materials.

“While the initial assessment was concerning, the device was not an explosive nor a decoy,” Cody said in a statement after the all-clear was given. “All school sites have been cleared and secured.”

Classes will resume as normal Tuesday, Sept. 30, district officials confirmed.

The Brush Police Department thanked the Brush Volunteer Fire Department, Greeley Bomb Squad, Morgan County Ambulance Service, Colorado State Patrol, and community members for their cooperation.