Updated

Two tires of an American Airlines jet popped when the aircraft landed at Chicago's O'Hare International Airport.

American spokeswoman Mary Frances Fagan says no one none was injured when the two left main tires blew on a jet that landed in Chicago at 12:30 Monday afternoon. The flight from Reno, Nev., was carrying 137 passengers and five crew members

Fagan says a truck with a staircase rolled up to the plane, allowing the passengers to get off the aircraft. They were then taken to the terminal on a bus.

She says that it's not yet clear why the tires blew, but that such incidents are not uncommon. She also stressed that the jets are designed so they can land safely after tires blow out.