Over 40 offices in the House of Representatives may have fallen victim to an “IT security violation,” according to a secret memo from top congressional law enforcement to the Committee on House Administration.

The memo, written in part by Paul Irving, the House’s sergeant at arms, detailed the disappearance of a server for the House Democratic Caucus following its marking as evidence in a cybersecurity probe. Imran Awan, email server administrator to former DNC chair Debbie Wasserman Schultz, and members of his family had logged into the server more than 7,000 times between 2015 and 2016 without proper authorization.

Since then, the memo alleges, the caucus server holding emails from lawmakers has been replaced by a lookalike, but the original is gone.

An official with ties to the Committee on House Administration told the Daily Caller News Foundation — which reviewed and transcribed the February 2017 memo — that the replacement of the caucus server was clear evidence of a breach.

“[The Awans] deliberately turned over a fake server to falsify evidence,” they said, noting that the data itself was “completely out of [members’] possession.”

Irving said in the memo that the Pakistani Awan group was “an ongoing and serious risk to the House of Representatives, possibly threatening the integrity of our information systems and thereby members’ capacity to serve constituents.”

Rep. Louie Gohmert, R-Texas, who has had a hand in the case for some time, called for action from intelligence officials on the matter.

“We need someone assigned to the Awan case that will protect Congress from further breaches and from the Awan crime family,” Gohmert said. “For heaven’s sake, we need someone in the FBI to step up and do their job.”