Putin responsible for Navalny’s death: Biden

US President Joe Biden has directly blamed Russian President Vladimir Putin for the death of Kremlin Critic Alexei Navalny.

Biden on Friday said he was "not surprised" but "outraged" after the reported death of Russian opposition leader Alexei Navalny.

"He bravely stood up to the corruption, the violence and all the bad things the Putin government was doing," Biden said at the White House of Russian President Vladimir Putin. "Putin is responsible for Navalny's death."

The White House was seeking more information about Navalny's death at a Russian penal colony north of the Arctic Circle, where he was dispatched less than two months ago.

The development has put a further chill into already bitter US-Russian relations.

The 47-year-old Navalny had been a leading critic of Putin, and Biden had said after meeting Putin in Geneva in June 2021 that Nalvany's death would risk devastating consequences for Putin.

Biden and Putin remain deeply at odds over Russia's invasion of Ukraine two years ago, and Biden is urging Republican hardliners in the US Congress to support additional funding to pay for more weaponry for Ukraine's military.

Russia has figured prominently on the campaign trail as Biden seeks reelection in November.

(With inputs from agencies)