Iran has started raising uranium enrichment to 60 percent and will introduce 1,000 more centrifuges at the Natanz nuclear site, reports state-run IRNA news agency.

Ian’s Natanz nuclear facility had suffered an incident involving its electricity distribution network last Sunday. AEOI Chief Ali Akbar Salehi described the incident as “nuclear terrorism.” Many believe that Natanz was targeted by a cyberattack involving Israel’s foreign intelligence service Mossad.

Iranian Foreign Minister Javad Zarif vowed revenge on Israel but noted that the act of “nuclear terrorism and a war crime,” as he described the incident, would not prompt Iran to pull out of the talks.

“The Zionists want to take revenge because of our progress in the way to lift sanctions.… We will not fall into their trap. We will not allow this act of sabotage to affect the nuclear talks. But we will take our revenge against the Zionists,” Zarif was quoted as saying by Iranian media.

Iran has been stepping up its uranium enrichment beyond the limits set as part of the 2015 JCPOA, which was set after the Trump administration unilaterally pulled the US out of the pact and re-imposed sanctions on Iran in 2018. Iran said it was ready to recommit to the deal if the US scrapped the restrictions but refused to renegotiate its terms.