'What we want to discuss with the world powers is the message of peaceful nuclear energy for everyone and nuclear weapons for no one,' Ghashghavi said at a press briefing in Tehran.

In Vienna, Chu indicated that despite the talks, the US still keeps the option of sanctions against Iran open.

'However, countries that violate their international obligations must face serious consequences both here and at the UN security council,' he said in his official statement at the IAEA conference.

Ghashghavi explained that acting upon its policy of justice and peace for the sake of progress, Iran also wanted to discuss global economic and security problems with the five permanent member states of the United Nations Security Council and Germany.

President Mahmoud Ahmadinejad said Sunday that the nuclear issue was finished and Iran would not discuss 'its legitimate and ultimate nuclear rights with anyone'.

The six powers want to focus on Iran's controversial nuclear programmes rather than Tehran's views on global issues.

Ghashghavi denied reports that the talks might be held in Turkey.