The Islamic Republic has submitted documents to the International Atomic Energy Agency (IAEA) regarding the two remaining sites where the agency had alleged traces of enriched uranium were found, Iran�s nuclear chief has announced.

Mohammad Eslami, the head of the Atomic Energy Organization of Iran (AEOI), said on Wednesday that Iran is ready to provide further clarification should these documents not be accepted by the UN nuclear watchdog.

He pointed out that cooperation between Iran and the agency is "sustained" and based on a joint statement issued with IAEA Director-General Rafael Mariano Grossi, as well as principles of the Non-Proliferation Treaty (NPT) and safeguards agreements.

Grossi visited Tehran in March for high-level talks with Iranian officials, including with President Ebrahim Raisi, in an effort to resolve some of the outstanding issues.

In a joint statement after the visit, the two sides agreed that interactions will continue in a spirit of collaboration and in full conformity with a comprehensive Safeguards Agreement.

The IAEA informed Iran back in May it was closing the case of traces of nuclear material allegedly discovered at a site in Marivan, Fars Province, the first to be addressed under the March work plan and following explanations provided by Tehran.

The other two sites are located in Varamin and Turquzabad, both on the outskirts of Tehran.

By IRNA