The U.S. Court of Appeals for the Sixth Circuit on Wednesday affirmed a trial judge’s dismissal of a defamation lawsuit brought by the Thomas M. Cooley Law School against three plaintiffs lawyers who sued the school for alleged fraud in 2011.

The ruling followed last week’s dismissal by a federal judge in New York of a separate defamation countersuit brought by one of the plaintiffs attorneys—Jeffrey Kurzon—against Cooley. That judge said she lacked jurisdiction over the Michigan law school.