US President-elect Donald Trump speaks at the USA Thank You Tour event at the Iowa Events Center in Des Moines, Iowa, US, December 8, 2016. PHOTO: REUTERS
"I think it's ridiculous. I think it's just another excuse. I don't believe it," Trump said in the interview, taped on Saturday.
He blamed Democrats for putting out the media reports and said he did believe they came from the Central Intelligence Agency.
CIA report says Russia interfered in US election to help Trump win
A senior US intelligence official told Reuters on Friday that intelligence agencies have concluded with "high confidence" that not only did their Russian counterparts direct the hacking of Democratic Party organisations and leaders, but they did so to undermine Democratic candidate Hillary Clinton.
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