"If they (the US) return to sanctions, we will not remain committed to the agreement," Zarif said as quoted by Press TV broadcaster.
The US Senate voted unanimously on Thursday to prolong 1979 sanctions by another 10 years after they expire this month. The extension was endorsed by the lower chamber of the parliament last month and would now go before President Barack Obama, who is expected to sign it before he leaves office next year.
On Friday, Iranian Foreign Ministry spokesman Bahram Ghasemi said that the US decision to renew sanctions against Iran was in breach of last year’s nuclear deal.
On July 14, 2015, Iran and the P5+1 group of world powers — China, France, Russia, the United Kingdom and the United States plus Germany — signed the JCPOA, ensuring the peaceful nature of Tehran's nuclear program in return for the gradual lifting of sanctions. The agreement came into force on January 16, after the IAEA submitted a report confirming the readiness of Iran's authorities to implement the program to reduce the country’s nuclear potential.
