Obama congratulates Putin on win
President Barack Obama has congratulated Vladimir Putin for winning the election as Russia's next president, the White House said.
Obama and Putin spoke by phone on Friday, five days after Mr Putin won a return to the presidential post he held before his protege Dmitry Medvedev's single term.
The US has been somewhat cool to Mr Putin, who has been highly critical of the United States - much more so than the man he is replacing.
The White House said the two men agreed to continue discussion on areas where the US and Russia have differed, including on next steps in Syria.
The White House said Mr Obama told Mr Putin that the two nations have much work to do together.
He highlighted current cooperation on nuclear disarmament, Iran sanctions and in Afghanistan.