MOSCOW — Russian immigration officials said Saturday they have not received an application from Edward Snowden, the U.S. National Security Agency leaker who wants to get asylum in Russia.

Snowden came to Moscow’s Sheremetyevo international airport on June 23 from Hong Kong, apparently intending to board a flight to Cuba. But he did not get on that flight and is believed to have spent the last three weeks marooned in the airport’s transit zone.

On Friday, he met with human rights activists there and said he would seek Russian asylum, at least as a temporary measure before going to Venezuela, Bolivia or Nicaragua, all of which have offered him asylum.

But the Interfax news agency quoted Russian migration service head Konstantin Romodanovsky as saying no asylum request had been received as of Saturday. The state news agency RIA Novosti cited migration service spokeswoman, Zalina Kornilova, as also saying no request had been received.

Snowden had made a previous bid for Russian asylum, but President Vladimir Putin said he would have to agree to stop further leaks of information about American intelligence service activities before it would be considered. Snowden withdrew the bid, but participants in Friday’s meeting said he was now ready to agree to stop leaks.

Granting asylum to Snowden would add significant new stress to already-troubled Washington-Moscow relations.

Putin and President Barack Obama are expected to hold a summit in Moscow in early September, right before both take part in the Group of 20 summit in St. Petersburg, and the Snowden issue could overshadow both gatherings.