BUSHEHR, Iran (AP) —
Iran began pouring concrete Sunday for a second nuclear reactor at its Bushehr power plant, a facility Tehran points to as its reason to break the enrichment limit set by its unraveling 2015 nuclear deal with world powers.
While celebrating the start of construction, the politics of the moment weren't lost on Iranian officials as a U.S. pressure campaign of sanctions blocks Tehran from selling its crude oil abroad.
"It was not us who started breaking commitments, it was them who did not keep to their commitments and cannot accept the nuclear deal as a one-way roadmap," said Ali Akbar Salehi, the head of the Atomic Energy Organization of Iran.
Bushehr is fueled by uranium produced in Russia, not Iran, and is monitored by the United Nations' International Atomic Energy Agency. However, Iran began 4.5% enrichment in part to supply Bushehr despite the deal limiting it to 3.67%.
While that's still nowhere near weapons-grade levels of 90%, nonproliferation experts warn Iran's growing stockpile and increasing enrichment will begin to shave off time from the estimated year Tehran would need to gather enough material for an atomic bomb.
Iran long has maintained its program is for peaceful purposes, though the deal was designed to limit its enrichment program in exchange for the lifting of international sanctions. Those limits blocked its path to being able to have enough material for a bomb.
On Sunday, trucks with spinning concrete mixers poured their slurry into the prepared base of the second reactor as journalists watched in Bushehr, some 700 kilometers (440 miles) south from Iran's capital, Tehran. Bushehr's working reactor stood behind it.
Officials say the new reactor, and a third planned to be built, will each add over 1,000 megawatts to Iran's power grid. It is being built with the help of Russia, which helped finally put Bushehr's first reactor online in 2011 after decades of delays.
Salehi, speaking to reporters, praised the plant's operations.
"The security of this power plant has been provided by the armed forces and its safety has been endorsed by international institutions," he said.
That appeared to be a dig at Gulf Arab states opposed to Tehran, who earlier raised concerns to the IAEA that Bushehr was a risk to the wider region over earthquakes that routinely hit Iran. The facility is built to resist damage from a temblor.
Salehi also offered Iran's help to neighboring Arab nations, noting the United Arab Emirates' nuclear power plant in Barakah had seen years of delays.