An anhydrous ammonia leak that occurred early on April 25 in the northern Chicago suburb of Beach Park, Ill., has sent 37 people to the hospital, with seven listed in critical but stable condition as of 12:40 p.m. CST, according to the Associated Press.
Wire reports said the leak occurred at about 4:30 a.m. from a container that was being transported by a tractor. Those hospitalized reportedly include 11 firefighters and three police officers who responded to the scene. Residents within a one-mile radius of the leak were initially told to close their windows and remain indoors, but that order was lifted a few hours later, the AP reported. Schools in the area remain closed.