In the United States, President Obama has vowed to retaliate against Russia over Russia’s alleged meddling in the U.S. presidential election to help Donald Trump win. This is President Obama speaking to NPR Thursday.

President Barack Obama: “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 a place of our own choosing. Some of it may be explicit and publicized; some of it may not be. But Mr. Putin is well aware of my feelings about this, because I spoke to him directly about it.”

According to NBC, unnamed U.S. intelligence officials say Russian President Vladimir Putin was personally involved in the effort to meddle in the 2016 U.S. presidential election to help Donald Trump win. The CIA has accused Russia of intervening, and President Obama has ordered a review of Russia’s role. President-elect Donald Trump has called the claims “ridiculous.”