Chopper 7 was over the scene at about 7 a.m. as first responders surrounded a Southwest Airlines flight.
Flight 1243, also known as "California One" departed from Fort Myers, Florida on Monday morning, the airline said.
While landing, both nose gear tires "lost air pressure" while landing in Chicago, the airline said in a statement.
"I realized we stopped and we weren't close to getting off the plane, and then I could smell the burnt rubber," passenger Mya Castro said.
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"Once we did come to a stop, we could see smoke coming. Not excessive, but we knew something was wrong," passenger Brian Rigsby said.
Mechanics changed the tires and the aircraft was towed to the gate, Southwest said.
No other information was available.
WATCH: Crews change nose gear tires of Southwest Airlines flight at Midway airport