TEHERAN - Head of the Atomic Energy Organization of Iran (AEOI) Fereidoon Abbasi and Director General of the International Atomic Energy Agency (IAEA) Yukiya Amano on Monday discussed ambiguities in Iran's nuclear program and urged for expansion of ties, the local ISNA news agency reported.

In a meeting held in Teheran, the two sides discussed the existing problems raised by the West about Iran's nuclear program "openly" and suggestions were put forward for removing the ambiguities, said the report.

Abbasi outlined the diverse activities of the AEOI in agriculture, medicine and industry and called for "effective" cooperation with IAEA.

The IAEA chief also affirmed that the UN nuclear watchdog will further expand its cooperation with AEOI in diverse areas, according to ISNA.

Amano arrived in Teheran Monday for crucial nuclear talks. During his one-day working visit, Amano will also meet Secretary of Iran's Supreme National Security Council Saeed Jalili and other senior representatives of the Iranian government.

The UN nuclear watchdog said Friday in a brief statement that Amano would visit Tehran for nuclear talks and would discuss issues of mutual interest with high-level Iranian officials on Monday.

The talks aim at pushing Iran to allow IAEA experts access to sites, people and documents the agency seeks to address concerns that the country might have been working on nuclear weapons.