Donald Trump's former national security tsar Michael Flynn has admitted lying to the FBI about a meeting with the Russian ambassador.
Flynn was charged as part of the probe into Trump's ties with Russia, being conducted by former FBI boss Robert Mueller, and has now pleaded guilty.
Court documents filed today (December 1) stated that on January 24 Flynn "willfully and knowingly make materially false, fictitious and fraudulent statements and representations in a matter within the jurisdiction of the executive brand of the government of the United States."
Flynn was describing a meeting he had with the then-Russian ambassador Sergey Kislyak, before Trump took office.
He is now the most senior member of the Trump administration to be indicted by this investigation, which is looking at any links between Trump's campaign and Russian operatives.
Trump's former aide George Papadopoulos has also already pleaded guilty to giving incorrect statements to the FBI.