A lawyer for former FBI deputy director Andrew McCabe filed a lawsuit against the Justice Department's inspector general and the FBI late Tuesday, claiming they are withholding documents related to McCabe's firing in March.

David Snyder said he has repeatedly tried to get copies of the rules and policies cited by Justice Department officials in recommending that Attorney General Jeff Sessions fire McCabe for misleading investigators looking into the leak of information about an aspect of the FBI's investigation of the Clinton Foundation.

"Those requests have been denied by some of the same high-ranking officials who were involved in, or were responsible for, the investigation, adjudication and/or dismissal of Mr. McCabe," Snyder said in a complaint filed in federal court in Washington, D.C.