Roger Stone, long-time adviser and ally to President Donald Trump has been sentenced to 40 months in jail.

Axar.az reports citing foreign media.

Stone was found guilty in November on seven counts of lying to Congress, obstruction and witness tampering.

He is the sixth Trump aide convicted in a criminal case resulting from Robert Mueller's investigation into alleged collusion between Russia and the Trump campaign during the 2016 election.

Mr Trump has hinted he may pardon his ally.

Stone has maintained the case against him was politically motivated.

Explaining the sentence, Judge Amy Berman Jackson said Stone had engaged in "intolerable" "threatening and intimidating conduct" toward her.

Last week, prosecutors on the case quit after the Justice Department said it planned to reduce the amount of prison time sought for the president's long-time ally.