Special Counsel Robert Mueller has handed in a keenly awaited report on his investigation into Russia's role in the 2016 presidential election and any potential wrongdoing by US President Donald Trump, the Justice Department said on Friday.
Mueller submitted the report to Attorney General William Barr, the top US law enforcement official, the department said. The report was not immediately made public - Barr will have to decide how much to disclose - and it was not known if Mueller found criminal conduct by Trump or his campaign, beyond the charges already brought against several aides.
Mueller, a former FBI director, had been examining since 2017 whether Trump's campaign conspired with Moscow to try to influence the election and whether the Republican president later unlawfully tried to obstruct his investigation.
Trump has denied collusion and obstruction. Russia has denied election interference.