American Airlines flights across the country are grounded because of computer problems.
American asked the Federal Aviation Administration to halt its flights until 5 p.m. EDT. Flights on regional affiliate American Eagle heading to Dallas, Chicago or New York's LaGuardia Airport have been stopped until 3:30 p.m. EDT.
Some passengers are stuck on planes while others can't make reservations.
Passengers are using social media to flood the airline with complaints.
American Airlines spokesman Kent Powell said Tuesday that the airline is trying to resolve the issues as quickly as it can.
On Twitter, American is sending out apologies but not offering customers much information about when the problem will be fixed. In their tweet at 1:40 p.m., they state "We are now in a system-wide ground delay until 4:00pm CT as we work to resolve this issue. We apologize for any inconvenience."
As of midday, American had canceled seven flights and was experiencing delays on more than 50 others, according to the flight-tracking service FlightStats. The Federal Aviation Administration says it's holding arriving flights to Dallas-Fort Worth, Chicago's O'Hare Airport, and New York's LaGuardia Airport "due to airline automation."