Iran has begun injecting uranium gas into advanced centrifuges in violation of its 2015 nuclear deal with world powers, a spokesman said Saturday, warning that Europe had little time left to save the agreement.
President Donald Trump withdrew America from the accord over a year ago and imposed crippling economic sanctions on Iran.
"As far as the other side does not implement their commitments, they should not expect Iran to fulfill its commitments," said Behrouz Kamalvandi of the Atomic Energy Organization of Iran.
Iran cannot remain committed to the nuclear deal unilaterally, he said.
He made the remarks in a news conference carried on live television, speaking from a podium with advanced centrifuges standing next to him.
Kamalvandi said Iran had the ability to go beyond 20 percent enrichment of uranium.
Analysts say 20 percent is just a short technical step away from 90 percent enrichment, which is weapons-grade level.
Iran already has gone beyond the stockpile and enrichment level limits set by the deal, which had promised sanctions relief in return for curbing the country's nuclear program.
Kamalvandi said Iran will allow the UN atomic agency to continue monitoring its nuclear program.
"Regarding the monitoring and accesses of the IAEA (International Atomic Energy Agency)... so that everything is clear (Iran's) commitments regarding transparency will be followed as before.”
Kamalvandi claimed that developing new type of centrifuges are in Iran's agenda but there is no need to produce those machines now.