(ONLINE.WSJ) — A federal agent who launched the investigation that ultimately led to the resignation of Central Intelligence Agency chief David Petraeus was barred from taking part in the case over the summer due to superiors’ concerns that he had become personally involved in the case, according to officials familiar with the probe.

New details about how the Federal Bureau of Investigation handled the case suggest that even as the bureau delved into Mr. Petraeus’s personal life, the agency had to address questionable conduct by one of its own—including allegedly sending shirtless photos of himself to a woman involved in the case.

FBI officials declined to identify the agent, so he couldn’t be reached to give his side of the story. The agent is now under investigation by the Office of Professional Responsibility, the internal-affairs arm of the FBI, according to two officials familiar with the matter.

  • Text smaller
  • Text bigger
Note: Read our discussion guidelines before commenting.