His upcoming visit to the UN headquarters, reported today, comes as the future of Iran's landmark 2015 nuclear deal with world powers is in doubt.
President Donald Trump's administration has been debating for months whether to scuttle the nuclear deal, as Trump threatened to do as a candidate.
The Trump administration has called for UN inspections of Iranian military installations, a demand rejected by Tehran, and has also ramped up sanctions linked to Iran's ballistic missile program.