US president-elect Donald Trump's transition team is dismissing a media report that the CIA believes the Russian government tried to intervene in the US election because it wanted Trump to win.

A Friday night statement released by the transition team notes that the CIA "are the same people that said Saddam Hussein had weapons of mass destruction".

US intelligence officials have accused Russia of hacking into Democratic officials' email accounts in an attempt to interfere with the presidential campaign. The Washington Post, citing anonymous US officials, said on Friday that the CIA has concluded that Russia aimed specifically to help Trump win the presidency.

The transition team statement says: "The election ended a long time ago... It's now time to move on and 'Make America Great Again."'

In October, the US government formally accused Russia of a campaign of cyber attacks against Democratic Party organisations ahead of the November 8 presidential election.

The hacked emails passed to WikiLeaks were a regular source of embarrassment to the campaign of Hillary Clinton during the race for the presidency.

Intelligence agencies did not have specific intelligence showing the Kremlin directed the individuals to pass the hacked emails to WikiLeaks, a senior official told the Post. The actors were "one step" removed from the Russian government rather than government employees, the official said.

Australian WikiLeaks founder Julian Assange has said in a television interview that the Russian government was not the source of the emails.