Iran began to retreat
Experts of the International Atomic Energy Agency (IAEA) will travel to Iran in the nearest future, IAEA representative Herman Nackaerts said.
BBC reports that the talks between Iran and the IAEA ended in Tehran on Tuesday.
Nackaerts said the positive progress was achieved during the negotiations. He said his organisation and the Iranians were both determined to address all outstanding matters.
"But of course there is still a lot of work to be done and so we have planned another trip in the very near future," he told reporters as he landed in Vienna, the organisation's headquarters.
A few days ago, Iran described its three days of talks with the IAEA inspectors as "positive and constructive". According to state media the IAEA team did not inspect any nuclear sites.
The inspectors' evaluation of their visit may form part of the next written report on Iran's nuclear programme, expected later in February.
Tehran says its nuclear activities are simply for electricity generation.
But last November, the IAEA said it had information suggesting Iran had carried out tests "relevant to the development of a nuclear explosive device".
Since then, the US and the European Union have imposed a series of sanctions against Iran, including measures targeting the country's lucrative oil industry.
