Trump Russia Claims: FBI's Comey Confirms Investigation of Election 'Interference'
FBI director James Comey has confirmed for the first time that the FBI is investigating alleged Russian interference in the 2016 election, the BBC reported.
However, Mr Comey said his agency had seen no evidence to back up President Trump's claim that his phones had been tapped by the Obama administration.
He was giving evidence to the congressional intelligence committee.
The Trump administration said nothing had changed and there was "no evidence of Trump-Russia collusion".
The FBI investigation would examine possible links between individuals in the Trump campaign and the Russian government and whether there was co-ordination between the Trump campaign and Russia, Mr Comey said.
The FBI would also assess whether crimes were committed, he said.
Mr Comey said the investigation was "very complex" and he could not give a timetable for its completion.
"We will follow the facts wherever they lead," he said.
National Security Agency (NSA) chief Admiral Mike Rogers also appeared before the committee.
He said the NSA stood by an intelligence community report published in January, which said that Russian President Vladimir Putinto harm the campaign of Mr Trump's rival, Hillary Clinton.
Mr Comey said he had no information onearlier this month that former president Barack Obama had ordered a wiretap on Trump Tower.
This was despite looking carefully for such evidence, he said. The Department of Justice also had no information, he said.
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