There were no injuries after an American Airlines jet made an emergency landing at O'Hare International Airport, Chicago authorities said.
Chicago Department of Aviation spokeswoman Karen Pride said there was "a pressurization problem" on American Airlines Flight 2363, which landed about 10:30 a.m. Sunday. The flight had taken off from Chicago and returned there.
Pride didn't have further details.
An American Airlines spokesman didn't immediately respond to a request for comment.
The airline's Web site said the flight was headed from O'Hare to the Yampa Valley Regional Airport in Colorado. It arrived at its destination after 1 p.m. — about two hours later than scheduled.
Chicago Fire Department spokesman Larry Langford said there were 119 people aboard the Boeing 737.
