The United States has tightened restrictions on Iranian Foreign Minister Javad Zarif on his visit to New York this week, the Washington Post reported.
Pompeo said Zarif and the accompanying delegation were told to allow only the transfer between the United Nations and the Iranian mission to the organization, which is 6 blocks away, and the residence of Iran's ambassador to the United Nations near the mission.
A US State Department official said Zarif would be allowed to travel only between the United Nations, the Iranian mission to the organization, the residence of the Iranian ambassador to the United Nations and John F. Kennedy airport in New York.
Zarif arrived in New York on Sunday after US Secretary of State Mike Pompeo agreed to the visit, amid intense tension between the two countries.
Washington threatened late last month to place Zarif on the blacklist, a move that could hamper any US efforts to resolve differences with Tehran through diplomatic means.
US special envoy to Iran Brian Hawk said US officials would not meet in a fair manner.
Hawk told Fox News: "There is no current back channel between the United States and any member of the Iranian regime," he said.
The State Department official said the United States had imposed restrictions on Zarif's travel "in a fully consistent manner" with its obligations under the 1947 agreement with the United Nations.
The official accused Zarif of using US liberties "to spread a malicious agenda" and said Zarif was "a trumpet of tyranny that suppresses freedom of expression."
Zarif is scheduled to attend a ministerial meeting at the United Nations on sustainable development goals, which will focus issues such as conflict, hunger, equity and climate change by 2030.