Kansas City fire investigators found only small amounts of carbon monoxide fumes Sunday morning in the entry level of the Majestic Theaters at Zona Rosa, said Joe Vitale, a battalion chief.
Rosemary Salerno, Zona Rosa general manager, said a group of people hold a church service in the comedy club on Sunday mornings.
Several people said they felt sick but declined treatment. No one had fainted and a couple people later said they may have felt sick before the service, Salerno said.
Firefighters, ambulances and the gas company responded to the report. The investigation is continuing, Vitale said.