BEACH PARK, Ill.—Plumes of a toxic gas that leaked in a northern Chicago suburb Thursday morning sent at least 37 people to hospitals and prompted an order for residents to stay locked inside their homes with windows shut tight, officials said.
Three law enforcement officers who responded to the leak in Beach Park were among those injured and they were in good condition, Lake County Sheriff’s spokesman Christopher Covelli said. Several other people were in serious but stable condition, Covelli said.