Federal prosecutors working under U.S. Attorney Jeanine Pirro attempted to “circumvent” court limits on their investigation into Federal Reserve Chairman Jerome Powell by making an unannounced visit to the Fed construction site and requesting a “tour,” lawyers for the central bank said Tuesday.

According to an email reviewed by the Washington Examiner, outside counsel Robert Hur rebuked the effort after officials from Pirro’s office arrived without notice and asked to “check on progress” at the central bank’s headquarters renovation project — an issue already at the center of a stalled criminal investigation.