President Donald Trump’s ex-national security adviser, Michael Flynn, has pleaded guilty to making a false statement to the FBI in January, the BBC reports.
Mr Flynn was forced to resign the following month after misleading the White House about meeting the Russian ambassador before Mr Trump took office.
The charges were brought by Special Counsel Robert Mueller, as part of his investigation into alleged Russian meddling in the 2016 US election.
Mr Flynn arrived at court on Friday.
He admitted to one count of knowingly making “false, fictitious and fraudulent statements”.
According to an AFP reporter, Mr Flynn was asked by Judge Rudolph Contreras if he wished to plead guilty and responded with the words “Yes, sir”. The judge continued: “I accept your guilty plea. There will be no trial and there will be probably no appeal.”
A short time later he issued a statement in which he said “I recognize that the actions I acknowledged in court today were wrong and, through my faith in God, I am working to set things right”.
The former aide is the most senior member of the Trump administration so far to have been indicted by the Mueller investigation.
In October, Mr Trump’s former presidential campaign manager, Paul Manafort, was accused of conspiring to defraud the US in his dealings with Ukraine. It also emerged that another ex-aide, George Papadopoulos, had pleaded guilty to making false statements to FBI agents.