This article is more than 1 year old

This article is more than 1 year old

The US special counsel, Robert Mueller, disclosed for the first time on Friday that his office has evidence of communications between Roger Stone and WikiLeaks related to the release of hacked Democratic party emails.

In a court filing on Friday, Mueller’s office said it had gathered that evidence in a separate inquiry into Russian intelligence officers who were charged by Mueller with hacking the emails during the 2016 US presidential campaign and staging their release.

Mueller will use Roger Stone's bank records, texts and emails as evidence Read more

In an email criticising media coverage of Mueller’s filing on Friday, Stone, a longtime associate of Donald Trump, said the evidence was “innocuous Twitter direct messages” that have already been disclosed to the House Intelligence Committee and “prove absolutely nothing”.

Also on Friday, a federal judge placed some limits on what Stone and his lawyers can say publicly about his criminal case brought by the special counsel in the Russia investigation.

But the US district judge, Amy Berman Jackson, stopped short of imposing a broad ban on public comments by the outspoken political operative, issuing a limited gag order she said was necessary to ensure Stone’s right to a fair trial and “to maintain the dignity and seriousness of the courthouse and these proceedings”.

Stone was indicted last month for lying to Congress about his communications with others about the hacked emails. Mueller did not say at the time that he had evidence of communications with WikiLeaks. Stone, an ally of Trump for 40 years, has pleaded not guilty to the charges.

Stone has previously acknowledged brief exchanges with WikiLeaks and Guccifer 2.0 but maintains he never had advance knowledge about the release of hacked emails.

But Friday marked the first time Mueller indicated he had obtained related evidence, although it remained unclear if the evidence is more substantial than what is publicly known.

“The government obtained and executed dozens of search warrants on various accounts used to facilitate the transfer of stolen documents for release, as well as to discuss the timing and promotion of their release,” Mueller’s team wrote in a filing to the US district court in Washington DC.

“Several of those search warrants were executed on accounts that contained Stone’s communications with Guccifer 2.0 and with Organization 1.”

Roger Stone: a master of the political dirty trick Read more

Organization 1 is a reference to WikiLeaks, while Guccifer 2.0 is a hacker persona US intelligence agencies say was a cover name used by Russian military intelligence.

WikiLeaks and Guccifer 2.0 each published emails and other documents from the Democratic party in 2016 in an operation that Mueller alleges was part of a Kremlin-backed effort to tip the election in favour of then Republican nominee, Donald Trump.

WikiLeaks has previously denied any ties to or cooperation with Russia. Stone, 66, was arrested in an FBI raid at his Fort Lauderdale, Florida, home last month. He has pleaded not guilty to charges of lying to Congress, obstruction and witness tampering. The charges stem from conversations he had during the 2016 election about WikiLeaks, the anti-secrecy group that released material stolen from Democratic groups, including Hillary Clinton’s campaign.

US intelligence agencies have said that Russia was the source of the hacked material, and last year Mueller charged 12 Russian intelligence officers in the hacking. But Stone is not accused of directly coordinating with WikiLeaks.﻿