Russia has voiced its "disappointment" over the cancellation of bilateral talks with the US that were due to take place in September.
Putin's foreign affairs adviser said the move showed America's unwillingness to develop ties on an "equal basis", while a White House aide said that pre-existing tension between the two countries had been deepened by Russia's decision to grant asylum to intelligence leaker Edward Snowden.
President Obama still plans to attend G20 econoic talks in St Petersburg.
Putin's foreign affairs adviser said the move showed America's unwillingness to develop ties on an "equal basis", while a White House aide said that pre-existing tension between the two countries had been deepened by Russia's decision to grant asylum to intelligence leaker Edward Snowden.
President Obama still plans to attend G20 econoic talks in St Petersburg.