Former employees of Skybus Airlines filed a class action lawsuit against the company in bankruptcy court Tuesday, saying they weren't properly told of the airline's plan to shut down operations.

A story from the AP says, Skybus violated the federal Worker Adjustment and Retraining Notification Act, which requires companies to notify employees at least 60 days in advance of any mass layoffs, according to the lawsuit, which was filed in U.S. Bankruptcy Court in Delaware.

In a court filing dated April 4 _ the last day Skybus was in operation _ the Columbus-based airline said it planned to lay off 450 employees in several phases, with the majority losing their jobs as of April 7. Of those, 365 were based in Columbus, with the remainder in Greensboro, N.C.

Former Skybus CEO Mike Hodge told The Columbus Dispatch on Tuesday that the company believes it complied with the law. He cited a section of the WARN Act that grants an exception to companies that are actively seeking capital or business that, if obtained, would have allowed those companies to avoid or postpone a shutdown.