A United Airlines flight from O'Hare International Airport was diverted to Madison, Wisconsin, on Friday night due to a security concern with an unruly passenger, the airline said. United Airlines Flight 2005, travelling from O'Hare to Minneapolis-Saint Paul International Airport, landed safely at the Dane County Regional Airport in Madison, Wisconsin, at around 9:10 p.m., according to the Federal Aviation Administration. The FAA said the crew reported a disturbance involving a passenger, but specifics regarding the incident haven't been released. The FBI confirmed to NBC News a subject was detained by the Dane County Sheriff's Office. The sheriff's office told WMTV NBC 15 in Madison a 75-year-old man was confused and suffering a mental health crisis. Charges against the man won't be pursued, sheriff's officials said. #ohare #flight #travel