Former FBI Director James Comey. Andrew Burton/Getty Images The private meeting between President Donald Trump and then-FBI Director James Comey was so concerning to Comey that the next day, he told Attorney General Jeff Sessions he didn't want to be left alone with Trump anymore, according to a report from The New York Times on Tuesday.

According to the report, which cited current and former White House officials, Comey told Sessions that private interactions between himself and Trump were inappropriate.

During the pair's meeting in February, the president asked Comey to end the FBI's investigation into former national security adviser Michael Flynn, who had resigned one day earlier amid reports he had misled White House officials about his conversations with the Russian ambassador to the US.

"I hope you can see your way clear to letting this go, to letting Flynn go," Trump told Comey, according to Comey's notes from the meeting.

Sessions did not guarantee Comey that the president would refrain from requesting more private meetings, the Times reported. Trump eventually fired Comey in May, later attributing his decision to Comey's handling of the Russia probe.

The revelation comes two days before Comey is due to testify before the Senate Intelligence Committee about his interactions with Trump.