NEW YORK (CNN) - Florida-based Southeast Airlines announced it has shut down due to the "uncontrollably high cost of fuel," according to a statement posted on the company's Web site.

The low-cost carrier served seven destinations: Allentown-Bethlehem, Pa.; Newburgh, N.Y.; Columbus, Ohio; Gary, Ind.; and Ft. Lauderdale, St. Petersburg, and Orlando, Fla.

Southeast Airlines, based in Largo, Fla., issued the following statement online:

"Southeast Airlines has made its final landing and has ceased airline operations. We apologize for the inconvenience this will cause to our customers. This action is due in part to the unplanned and uncontrollably high cost of fuel combined with a low yield environment that makes it impossible for Southeast to continue offering low-cost air transportation.

"We sincerely thank all of our loyal employees, customers, and vendors for their dedication, support, and efforts. Customers should refer to their Operator Participant Contracts, or contact their credit card companies, for information on how to receive refunds of their unused tickets."