Talking to reporters during his weekly press briefing, Foreign Ministry spokesman Hassan Qashqavi said after the US refused to return Iran's inscriptions to the country, Tehran cut off its archaeological relations with the US scientific centers.
"The Iranian inscriptions have been taken to the US before the 1979 Islamic Revolution, are documents proving ancient and civilizational identity of the great Iranian nation," Qashqavi added.
Regretting that appropriate measures have not been taken yet, he said, "We expect the US side to return the inscriptions as soon as possible."
As long as the ancient inscriptions are not returned to the Islamic Republic, Tehran would reject any kind of archaeological cooperation with the US, he added. --IRNA