Macmanus walks out of meeting with Iran

Following an accusation by Iran's representative leveling accusations of "genocide" against Israel, U.S. Ambassador to the United Nations nuclear watchdog Joseph Macmanus walked out of an agency meeting on Wednesday.

Officials from Canada and Australia also left the closed-door meeting of the 35-nation International Atomic Energy Agency's governing board meeting following Iran's Ali Asghar Soltanieh's statement during a debate on Syria, Reuters reports.

The officials eventually returned to the meeting.

Iran has a history of levying such accusations against Israel and its policies toward Palestinians. The nation has also warned that it would wipe Israel "off the face of the earth" if it attacked.

Macmanus's walkout came several hours after he accused Iran of a "commitment to deception, defiance and delay" in addressing IAEA concerns about possible nuclear weapons-related research, Reuters reports.

"Iran is inviting further isolation, pressure and censure from the international community...until it meets its obligations and addresses the board's concerns," Macmanus said, according to Reuters.

Soltanieh, however, said that allegations about Iran's nuclear work were baseless and that a stalled inquiry into the program was the IAEA's fault.