HEBRON - Classes have resumed at Alden-Hebron District 19 schools after a bomb threat was called in on Wednesday morning, according to a news release.
All students were evacuated from their schools following the bomb threat.
The Hebron Police Department and a bomb squad from the Cook County Sheriff's Office were at the schools investigating the threat. The McHenry County Sheriff's Office assisted with traffic control.
Three K-9s were also used during a complete search of the buildings, police said. No explosives were found.
All students and staff were accounted for and safe, according to district officials.
The high school and middle schools are housed in the same building, while the elementary school is located in a neighboring building.
The investigation is ongoing.
— Lawerence Synett and Jim Dallke