Lieutenant General Michael Flynn, the former US National Security Adviser under President Donald Trump, will not comply with a Senate Intelligence Committee subpoena for documents related to their probe of Russian meddling in the 2016 elections.

He is invoking the Fifth Amendment and his right against self-incrimination.

"The context in which the Committee has called for General Flynn's testimonial production of documents makes it clear that he has more than a reasonable apprehension that any testimony he provides could be used against him," Flynn's lawyers wrote in a letter they sent to committee chairman Richard Burr and vice-chairman Mark Warner today.

The committee issued a subpoena to Flynn for documents this month, after he failed to produce records of contacts he had with Russian officials that the committee requested he provide voluntarily.

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Flynn is the only witness for whom the committee has issued a subpoena.