Donald Trump has changed his story on why he fired Michael Flynn as his national security adviser.

Donald Trump's former national security adviser Michael Flynn has said a senior member of the president's transition team directed him to make contact with Russian officials in December 2016.

The leading Democrat on a congressional committee has said documents suggest Michael Flynn lied to federal security clearance investigators about the source of payments he received from a Russian state-sponsored TV network.

Former US National Security Adviser Michael Flynn will invoke his 5th Amendment protection against self-incrimination and will not hand over documents to the probe into Russian interference in the 2016 election, sources said.

The Senate intelligence committee has subpoenaed Donald Trump's former national security adviser Michael Flynn for documents related to the panel's investigation into Russia's election meddling.

US president Donald Trump's former national security adviser, Michael Flynn, appeared to break US law when he failed to seek permission or inform the government about accepting tens of thousands of dollars from Russian organisations after a trip there in 2015, congressional committee leaders have said.

Former Trump administration national security adviser Michael Flynn has disclosed he earned more than $1.3m for work for political groups and government contractors, as well as for speeches to Russian companies and lobbying for a firm owned by a Turkish businessman.

Donald Trump's former national security adviser Michael Flynn is in discussions with the House and Senate intelligence committees about speaking to their probe into links with Russia in exchange for immunity, his lawyer has said.

White House press secretary Sean Spicer referred to Mr Trump's former national security adviser Michael Flynn as a "volunteer of the campaign".

Timothy L O’Brien asks why Donald Trump — via one of his top advisers — is so close to a violent fraudster with mob connections who has tried to influence US foreign policy.   

Donald Trump was told his national security adviser had misled his vice president about his contacts with Russia but waited two weeks to act, White House officials have said.

Kellyanne Conway has given her account of why his position became "unsustainable".

President Donald Trump's embattled national security adviser Michael Flynn has resigned, following reports that he had misled Vice President Mike Pence and other officials about his contacts with Russia.

Latest: Donald Trump has used social media to criticise Iran for testing a ballistic missile.