Ex-CIA employee Edward Snowden, who remains at the Sheremetyevo airport, will not harm Russian-American relations, whichever the way the situation may further develop, said Kremlin spokesman Dmitry Peskov.

"The president has demonstrated strong resolve to prevent this. I have no doubts this will be so indeed, however the situation may develop further," he told reporters on Friday.

Asked whether Russia's position on anyone's extradition to other countries has changed, he said, "We have never surrendered anyone and we will never do so in the future."