U.S. President Barack Obama has ordered intelligence agencies to review cyberattacks and foreign intervention into the 2016 election and deliver a report before he leaves office on Jan. 20, the White House said Friday.

In October, the U.S. government formally accused Russia of a campaign of cyberattacks against Democratic Party organizations ahead of the Nov. 8 presidential election, and Obama has said he warned Russian President Vladimir Putin about consequences for the attacks.

The review and its timeline are a signal that Obama wants the issue addressed before he hands power to President-elect Donald Trump, who cast doubt on Russia's hacking role and praised Putin during the campaign.