LOS ANGELES — In a rare diplomatic rebuke, President Barack Obama today canceled his Moscow summit with Russian President Vladimir Putin.

The decision reflected both U.S. anger over Russia’s harboring of National Security Agency leaker Edward Snowden and growing frustration within the Obama administration over what it sees as Moscow’s stubbornness on other key issues, including missile defense and human rights.

Obama will still attend the Group of 20 economic summit in St. Petersburg, Russia, but a top White House official said the president had no plans to hold one-on-one talks with Putin. Instead of visiting Putin in Moscow, the president will add a stop in Sweden to his early September travel itinerary.

Obama, who is traveling in California, said Tuesday that he was “disappointed” by Russia’s move to grant Snowden asylum for one year. But he said the move also reflected the “underlying challenges” the U.S. faces in dealing with Moscow.

“There have been times where they slip back into Cold War thinking and a Cold War mentality,” Obama said in an interview on NBC’s “The Tonight Show.”

White House deputy national security adviser Ben Rhodes said Russia’s decision last week to defy the U.S. and grant Snowden temporary asylum only exacerbated an already troubled relationship. And with few signs that progress would be made during the Moscow summit on other agenda items, Rhodes said the president decided to cancel the talks.

“We’ll still work with Russia on issues where we can find common ground, but it was the unanimous view of the president and his national security team that a summit did not make sense in the current environment,” Rhodes said.