TEHRAN, July 6 -- A delegation of the UN nuclear watchdog arrived in Iran's capital of Tehran on Monday to discuss the details of a recent cooperation agreement between Iran and the UN body to settle the remaining outstanding issues over Tehran's disputed nuclear program, an Iranian atomic spokesman was quoted as saying by state IRIB TV.

The five-member delegation of the International Atomic Energy Agency (IAEA) will discuss the implementation of the timetable for cooperation with the officials of Iranian Atomic Energy Organization (IAEO) and Iran's Supreme National Security Council, IAEO spokesman Behrouz Kamalvandi said.

Following the meeting with Iranian President Hassan Rouhani and head of Iran's Supreme National Security Council Ali Shamkhani in Tehran on Thursday, the IAEA Director General Yukiya Amano said that he has "a better understanding on some ways forward" over enhancing the transparency of Iran's controversial nuclear activities.

Amano visited Iran in the context of the IAEA's continued engagement with Iran and the P5+1 countries -- Britain, China, France, Russia and the United States plus Germany -- as they work toward a Joint Comprehensive Plan of Action.

The P5+1 countries want strengthened monitoring measures to ensure that Tehran complies with the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and its commitment to the comprehensive deal once the accord is agreed on.

The IAEA has long been asking Iran to grant the nuclear inspectors access to some military sites to verify if nuclear-related activities have taken place there, a request Tehran sees as an excessive demand beyond the NPT safeguards agreement and Iran's obligation.