Donald Trump's national security adviser, Michael Flynn, has resigned over his contacts with Russia, the White House has announced, reports the BBC.

Mr Flynn is alleged to have discussed US sanctions with the Russian ambassador before Mr Trump took office.

He is said to have misled officials about the conversation.

Earlier, US media reported that the Justice Department had warned the White House about the contacts late last month.

They said that Mr Flynn might be vulnerable to Russian blackmail.

From inauguration to full-blown scandal punctuated by a high-level resignation in 24 days. That simply has to be some kind of record.

BDST: 1249 HRS, FEB 14, 2017
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