Springfield District 186 schools received their ninth and 10th bomb threats this year on Thursday afternoon.
The district said the incident at Southeast High School occurred at 1:20 p.m. via phone call, and the second occurred at Springfield High right before the 3:17 p.m. dismissal.
District 186 said in a release students at Southeast were evacuated “out of an abundance of caution” to the adjacent football field.
After the building was searched, students returned to class at 2:30 p.m. and school dismissed at normal time.
Due to the timing of the call at Springfield High, students were dismissed at the normal time, but after-school activities were delayed as the building was searched.
Springfield High parents received an automated call about the search, but it did not mention the bomb threat.
The bomb threats were the second incident this week and ninth and tenth threats this school year. Classes at Springfield High School and Grant Middle School were disrupted for about two hours Tuesday after bomb threats prompted evacuations at both buildings.