No evidence has emerged to suggest that Russian hacking influenced the outcome of the U.S. presidential election, and it would be irresponsible to jump to conclusions before receiving a final intelligence report, Donald Trump's spokesman said on Monday.

"There is zero evidence that they influenced the election," Sean Spicer told Fox News.

Due to become White House press secretary when Trump is inaugurated on Jan. 20, Spicer told CNN the president-elect will see the intelligence report once it is completed this week.