The Iranian foreign minister made the remarks at a meeting with his Japanese counterpart in Tokyo as tensions escalated in the Middle East, raising fears that the United States and Iran are heading towards conflict, Reuters reported.
Zarif said at the start of his meeting with Japanese Foreign Minister Taro Kono that Iran is exercising maximum restraint despite the fact that the United States withdrew from JCPOA in May.
JCPOA is the Joint Comprehensive Action Plan, it is document of the final stages of the discussions between Iran on its nuclear program and the 5 + 1 countries (the United States, Russia, China, France, the United Kingdom and Germany).
President Donald Trump withdrew from the deal last year and stepped up sanctions against Iran, with the aim of stifling its economy by ending its international sales of crude oil. Japan was a major buyer of Iranian oil for decades before sanctions.