Summary
The U.N. nuclear watchdog Thursday urged Iran to explain the presence of uranium particles at an undeclared site, as a landmark deal aimed at curbing Tehran's atomic activities threatens to collapse.
The agency's acting head Cornel Feruta told a news conference that an IAEA team of experts would meet Iranian officials in Tehran next week to discuss the matter, which Iran had so far failed to address "in the proper way".
U.S. Ambassador to the IAEA Jackie Wolcott said in her statement to the board that it was "wholly unacceptable" that Iran had failed to address the matter, which has occupied the IAEA since January.
Feruta also reiterated Thursday that it was "unacceptable" that an IAEA inspector had been temporarily prevented from leaving Iran.
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