Two foreign allies of President Donald Trump — the face of Brexit and founder of WikiLeaks — may have had multiple, previously undisclosed meetings during the 2016 presidential campaign. In November testimony to the House Intelligence Committee that was made public Thursday, Glenn Simpson, founder of private intelligence firm Fusion GPS, said he’d heard reports that Brexit leader Nigel Farage provided data to WikiLeaks’ Julian Assange.

“I’ve been told and have not confirmed that Nigel Farage had additional trips to the Ecuadoran Embassy than the one that’s been in the papers and that he provided data to Julian Assange,” Simpson testified.

Simpson, whose firm assembled the so-called Trump-Russia dossier, added that the data came in the form of a thumb drive.

Farage is known to have made a trip to the embassy in March 2017 to meet with Assange, who has been accused of working with Russian hackers to release stolen emails and other material intended to damage Hillary Clinton’s campaign. The former UKIP party leader, who campaigned on Trump’s behalf, was identified as a “person of interest” in the federal investigation into Russia’s election interference in a Guardian report published last summer.

Both Farage and Assange have dismissed the suggestion that they took any action to influence the election results. The former British politician insisted he has “no connections to Russia,” while Assange has denied that WikiLeaks had any interest in helping Trump win.