WASHINGTON (AP) — The White House says President Barack Obama has ordered intelligence officials to carry out a "deep dive" into election-season cyberattacks.

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The review includes email hacks that rattled the presidential campaign and raised fresh concerns about Russia's meddling in U.S. elections.

A White House spokesman says the study, due to be completed before Obama leaves office next month, will examine possible patters of increased "malicious cyber activity."

Meanwhile, The Washington Post is reporting that the CIA has concluded that Moscow aimed specifically to help Donald Trump win the presidency. The paper reports that key senators in both parties were given a closed-door briefing last week.

The Kremlin and Donald Trump have repeatedly dismissed reports about Russian influence during the campaign.

Reacting to latest The Washington Post report, the Trump transition team released a statement saying intelligence agents were "the same people that said Saddam Hussein had weapons of mass destruction."