Mayor Ed Lee was a target in the federal corruption investigation into the Raymond “Shrimp Boy” Chow racketeering case that led to a prison sentence for former state Sen. Leland Yee and criminal charges against some of Lee’s campaign staff, an FBI agent testified in San Francisco Superior Court on Tuesday.

While no criminal charges were filed against Lee, FBI Special Agent Ethan Quinn said under questioning that Lee and his 2011 campaign for mayor were targets of a bribery investigation that eventually led to charges against three local officials. An affidavit of the case filed by prosecutors last year indicated the mayor was no longer a focus.