U.S. President Donald Trump  did not know until this week that his former national security adviser, Michael Flynn, had been working as a representative for Turkey, although the issue was raised with the Trump team before the Republican took office,Reuters reported quoting White House spokesman Sean Spicer.

Earlier it was reported, Flynn registered with the Justice Department as a foreign agent for $530,000 worth of lobbying work before Election Day that may have aided the Turkish government.

U.S. President Donald Trump's former national security adviser, Michael Flynn was known to have spoken with Russian ambassador Sergei Kislyak several times by phone in December. Flynn denied that he and Kislyak had discussed U.S. sanctions and Vice-President Mike Pence also denied the claims on his behalf. Later, Flynn told the White House that the topic of sanctions could be discussed.