Authorities say more than 70 people were treated at local hospitals after an air quality issue forced the evacuation of Oconomowoc High School and the adjacent Oconomowoc Arts Center.
Western Lakes Fire District Chief Brad Bowen says low carbon monoxide readings were detected on some of the first patients treated, but officials could not immediately find a cause or source.
Superintendent Roger Rindo says Sliver Lake Intermediate students were rehearsing in the arts center for a concert when a number of young people became nauseated and light headed about 9:30 a.m. Thursday.
News with a little more humanity
WPR’s “Wisconsin Today” newsletter keeps you connected to the state you love without feeling overwhelmed. No paywall. No agenda. No corporate filter.
Officials say about 35 of the patients who were treated at hospitals were taken by ambulance.
© Copyright 2026 by The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
