Flynn met with FBI investigators without Trump’s knowledge: report

President TrumpDonald John TrumpTrump conversation with foreign leader part of complaint that led to standoff between intel chief, Congress: report Pelosi: Lewandowski should have been held in contempt 'right then and there' Trump to withdraw FEMA chief nominee: report MORE's former national security adviser, Michael Flynn, met with FBI investigators early last year without the president's knowledge, according to a report from NBC News.

Flynn reportedly met with FBI investigators interested in his past correspondence with former Russian Ambassador Sergey Kislyak. That meeting was held last January behind closed doors in Flynn's White House office without a lawyer, NBC reported.  

White House counsel Don McGahn learned of the meeting from former acting Attorney General Sally YatesSally Caroline YatesMerriam-Webster: A 200-year-old dictionary offers hot political takes on Twitter Sally Yates: Moral fiber of US being 'shredded by unapologetic racism' Trump: 'Impossible for me to know' extent of Flynn investigation MORE, according to the network. 

Yates reportedly told McGahn that Flynn had lied to Vice President Pence and other administration officials about his communications with Kislyak and other Kremlin officials. 

McGahn then briefed Trump, then-chief strategist Stephen Bannon and then-chief of staff Reince PriebusReinhold (Reince) Richard PriebusPoliticon announces lineup including Comey, Hannity, Priebus Sunday shows - White House stresses Trump's determination in China trade fight as GOP challenger emerges Priebus: Left's 'wacko ideas' are opportunity for Republicans in 2020 MORE on his meeting with Yates, according to the report. 

Trump fired Flynn on Feb. 13. He reportedly asked then-FBI Director James ComeyJames Brien ComeyNadler's House committee holds a faux hearing in search of a false crime We've lost sight of the real scandal Former Obama officials willing to testify on McCabe's behalf: report MORE to let the probe into Flynn go the following day. 

Flynn pleaded guilty to lying to the FBI as part of special counsel Robert MuellerRobert (Bob) Swan MuellerLewandowski says Mueller report was 'very clear' in proving 'there was no obstruction,' despite having 'never' read it Fox's Cavuto roasts Trump over criticism of network Mueller report fades from political conversation MORE's probe into Russian election meddling, including possible ties between the Trump campaign and Moscow late last year. 

While Trump has pushed back on claims he asked Comey to let the Flynn probe go, he did say in an NBC News interview last May that he had Russia on his mind when he fired Comey. 

Mueller is reportedly interested in interviewing Trump and is set to interview Bannon at the end of this month.  

Yates has also cooperated with Mueller's team, according to NBC.