World powers and Iran have agreed to meet end-January in Istanbul for a next round of nuclear talks, when they plan to discuss "cooperation and find common points," a member of the Iranian delegation told AFP Tuesday.

"The negotiations will resume in end-January in Istanbul to discuss cooperation and find common points," said the official.

Talks in Geneva, which ended Tuesday after a scheduled two days, brought together the European Union's top diplomat, Catherine Ashton, and Iran's chief negotiator Jalili, as well as officials from Britain, China, France, Germany, Russia and the United States at the Swiss UN mission building.