Iran has opened its main uranium enrichment plant to a visiting foreign leader for the first time in the history of the site.

State TV on Monday showed footage of Mongolia's President Tsakhia Elbegdorj inspecting centrifuges at a facility in the central Iranian town of Natanz.

Inspectors of the international atomic energy agency visit the site regularly, and Iran has in the past allowed foreign diplomats and reporters to visit it as well.

The broadcast says President Elbegdorj said it would not be possible to visit such a sensitive place in other countries.

The West suspects Iran is enriching uranium as part of a push to develop nuclear weapons. Iran denies the charge, saying its programs is for peaceful purposes.