Secretary of Iran's Supreme National Security Council Saeed Jalili and EUJalili also focused on last week's terrorist attacks targeting Iranian scientists in Tehran.

He condemned the West and the P-five-plus-one's silence over the attacks, which left one Iranian professor dead and another injured.

He also questioned the involvement of certain countries in these attacks.

The both sides agreed to include issues such as nuclear disarmament, non-proliferation and peaceful nuclear cooperation, which have been touched upon in Iran's package of proposal, on the agenda of the next round of talks on Tuesday.

The P5+1, headed by Ashton, comprises of the deputy foreign ministers of member states.

Russia's Deputy Foreign Minister Sergei Ryabkov and US Undersecretary of State for Political Affairs William Burns were also present at the talks.

Dialogue between Iran and the P5+1 has been stalled since October 1, 2009, when the two sides met in Geneva