Michael Flynn, the former national security adviser to President Donald Trump, is reportedly close to being charged as part of the investigation being carried out by special counsel Robert Mueller.

Mr Mueller's team has collected sufficient evidence and is looking at possible charges of money laundering and lying to federal agents, NBC News reported.

He is also considering charges against Mr Flynn in relation to a possible plan to remove an opponent of Turkish president Recep Tayyip Erdoğan from the United States in exchange for millions of dollars, it was reported.