The Washington Post reported Wednesday that a friend of the person who leaked classified Pentagon documents said the leaker worked on a U.S. military base.

The Department of Justice has opened up an investigation into dozens of documents about U.S. spying on Russia’s military in Ukraine that have been posted online.

According to the Post, the friend said the leaker shared documents online via a forum he had joined while feeling isolated during the covid pandemic.

The online forum was reportedly invite-only and consisted of about two dozen people, mostly men and boys, on the Discord platform that’s popular with gamers. One of those members went by the handle “OG” and claimed to have knowledge about U.S. government secrets.

“OG” reportedly used language that was filled with acronyms and jargon. The Post’s source said that “OG” claimed to have brought the documents home from his job at a “military base,” and that he had worked for hours to write up the classified documents to share with those in the Discord group to keep them “in the loop.”

On Thursday while speaking to reporters during his visit to Ireland, President Biden suggested that the government is close to identifying the leaker.

“There’s a full-blown investigation going on, as you know,” Biden said. “The intelligence community and the Justice Department. And they’re getting close. I don’t have an answer for you.”

Along with an investigation by the DOJ, Defense Department spokesperson Sabrina Singh has said that the Pentagon is reviewing and assessing the impact of the leaked documents, which reveal U.S. spying not just on Russia but also on allies, including Ukrainian President Volodymyr Zelensky.

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