Tennessee –

“Milligan University President Stephen Waers said carbon monoxide levels had returned to normal after the leak was stopped. ‘A mechanical contractor confirmed that the equipment in question was shut down properly, that the gas supply was cut off, and it will no longer be an issue,’ …Waers added that the fieldhouse’s carbon monoxide sensors did not activate as expected.”

Milligan University Gas Leak: Campus In Tennessee Evacuated After Carbon Monoxide Exposure, Over 200 Hospitalized | US News – Times Now