Former National Security Adviser Mike Flynn has told investigators that he's willing to be interviewed as part of inquiries into alleged contacts between the Trump administration and the Russian government in return for immunity from prosecution.

A congressional official confirmed on condition of anonymity that Flynn made the offer. The Wall Street Journal reported that Flynn made the offer to the Federal Bureau of Investigation and two congressional committees.

"Gen. Flynn certainly has a story to tell, and he very much wants to tell it, should the circumstances permit," Robert Kelner, a lawyer for Flynn, said in statement late Thursday. "We will not comment right now on the details of discussions between counsel for Gen. Flynn and the House and Senate Intelligence Committees, other than to confirm that those discussions have taken place."