Students and staff at Evansville High School were evacuated Tuesday afternoon after carbon monoxide was confirmed in the technical education area of the school.
A carbon monoxide detector sounded in the shop area at 1:20 p.m. Tuesday, said District Administrator Jerry Roth.
Students and staff were moved to the gymnasium on the opposite end of the school, which operates on a separate air-handling system, Roth said.
At about 1:40 p.m., students with their own transportation were dismissed, and remaining students and staff were taken by bus to Theodore Robinson Intermediate School, Roth said.
The Evansville Police Department performed a second sweep of the school and confirmed no one was left in the building, Roth said.
Students who ride the bus were to remain at the intermediate school until dismissal at 3 p.m., Roth said. Parents were allowed to pick up their children early if they wished.
About 10 high school students remained at the intermediate school as of 2:35 p.m., Roth said.
The evacuation went smoothly and according to protocol, Roth said. The Evansville Fire Department is working to determine the cause of the incident, he said.
Roth said district officials are not sure if school will be back in session Wednesday.