The US special Prosecutor Robert Mueller’s team on Tuesday recommended not to sentence the former US President’s national security adviser Michael Flynn to prison, noting his “substantial assistance” in investigating Russia’s alleged interference in the US election.

“Taking into account the substantial assistance and other actions described below, a lenient sentence, including not involving imprisonment, is appropriate and reasonable,” says R. Muller’s team memo.

Earlier, his documents showed that Flynn could face up to six months in prison.

“The accused provided first-hand information on the content and context of the interaction between the transition group and Russian government officials,” the memo says.

In December 2017, Flynn pleaded guilty to lying to the FBI about his contacts with Russia. The court shall pronounce judgment against him on December 18.