Obama says will take revenge on Russia
President Barack Obama has vowed to take action against Russia for its apparent interference in the US presidential election.
"I think there is no doubt that when any foreign government tries to impact the integrity of our elections that we need to take action and we will at a time and place of our own choosing," Mr Obama told National Public Radio.
He said he had spoken to Russian president Vladimir Putin about the hacking, and said his counterpart was aware that the US would seek retaliatory action, some of it "explicit and publicised; some of it may not be".
Mr Obama last spoke directly with Mr Putin at the G20 meeting in China."Mr Putin is well aware of my feelings about this, because I spoke to him directly about it," Mr Obama said.
The next month, the White House named Russia as the prime suspect for the hacking of the Democratic National Committee emails over the summer.
White House press secretary Josh Earnest declined to say on Thursday whether the US had begun retaliatory measures.
He only said the president had deemed "a proportional response was appropriate" following CIA information that Russia had aimed to help Donald Trump win the election.