From Knoxville, Tenn.: A bomb threat led to the evacuation of Carter Middle School on Friday morning. Following the evacuation, students were affected by heat-related illness.

A total of 21 students were taken to the hospital for treatment. They were transported to Dolly Parton Children's Hospital.

Further details about the incident and the condition of the students are available from the source. The evacuation and subsequent hospitalizations occurred after a bomb threat was made at the school.