A plane is reportedly on fire at Chicago's O'Hare airport

A plane reportedly caught fire at Chicago's O'Hare airport while rolling out for departure on Friday afternoon, the Chicago Fire Department's office tweeted. 

Passengers traveling at O'Hare began sharing photos of smoke on the runway.

 CNN reporter Josiah Ryan was on an American airlines plane at O'Hare when the pilot reported that an "accident" had taken place on the runway. Multiple emergency vehicles were on the scene, Ryan said. 

The Federal Aviation Administration (FAA) issued a ground stop at the airport.

This story is developing.