Iran started showing signs of flexibility in terms of its nuclear program as result of the US pressure on it, US Vice President Joe Biden claims.

MOSCOW, December 7 (Sputnik) – The US Vice President Joe Biden said the result of the US pressure on Iran was that Iran started showing signs of flexibility in terms of its nuclear program.

“Result of our determination has been that the Iranians have begun to show slow flexibility on some important issues,” Biden said on Saturday addressing the annual Saban Forum in Washington.

The US vice president added that the progress was not enough to reach a comprehensive agreement on the Iranian nuclear program, but stressed it was enough to justify the extension of talks for seven additional months.

During the latest round of nuclear talks between Iran and the P5+1 Group in Vienna, the sides failed to reach a comprehensive deal before the self-imposed deadline of November 24, and agreed to continue negotiating until July 2015.

Tehran has faced several rounds of sanctions imposed by the UN Security Council, the European Union, the United States, and several other countries amid Iran’s alleged development of nuclear weapon under the guise of a civilian program. However, Iran has denied all these claims, saying the program has purely peaceful purposes and is meant to cover country’s growing energy demand.