Iran has taken a "step in the right direction" in answering questions related to its nuclear program, the International Atomic Energy Agency (IAEA) said on Thursday.
Acting Director-General Cornell Verota told a news conference in Vienna that there had been "cooperation" from Iran over the past few weeks on questions related to the IAEA's nuclear safeguards.
"Cooperation does not mean that these issues have been fully dealt with, but it is a step in the right direction," he said.
Verota said the relevant questions posed by the UN agency did not directly address Tehran's 2015 nuclear deal with major powers, but the separate safeguards agreement between Iran and the IAEA.
Verota did not give details of what the IAEA's questions were, but noted that it was discussing "substantive" issues with the Iranians.
While the IAEA appeared cautious in specifically revealing details of the outstanding issues, diplomatic sources in Vienna indicated that the agency was awaiting information from the Iranians about samples taken earlier this year from a warehouse near the capital Tehran that Israeli Prime Minister Benjamin Netanyahu accused Iran of the year. 2018 for using undeclared nuclear activities.