FedEx at Ft. Lauderdale
That plane caught fire on landing.
Weather does not appear to be a factor: South at 13 mph with high clouds and good visibility.
Photo below via FlightAlerts.
Here is the audio of the incident where ATC tells all aircraft on the ground at O'Hare to stop.
The audio of American 383 (the plane that caught fire), click here.
There is now a report that seven have been taken to the hospital for injuries during the evacuation. The injuries are reported to be minor.