Vienna, March 3, SPA -- Talks between the European Union's top powers and Iran days before a U.N. atomic watchdog board meeting ended on Friday without agreement, ministers said. After the high-level meeting between France, Britain, Germany and Iran in Vienna, German Foreign Minister Frank-Walter Steinmeier told reporters "Unfortunately we were not able to reach agreement today." Reuters quoted French Foreign Minister Philippe Douste-Blazy as saying that Iran was told it must return to a full suspension of activities linked to uranium enrichment to win fresh negotiations on trade incentives. The International Atomic Energy Agency's (IAEA) 35-nation board of governors will convene on Monday to weigh a report by the IAEA chief saying essentially that Iran has ignored a Feb. 4 call to reimpose a suspension of enrichment work to regain world trust. "We made clear to them that to regain trust they must return to a full suspension of research and development. This is the key to any restoration of confidence," Douste-Blazy said. "We regret that Iran was not able to respond to our conditions without further ado," he said. --SPA 13 40 Local Time 10 40 GMT www.spa.gov.sa/336272