Iran’s most prominent general, Qassem Soleimani, was killed on Friday in a US drone strike on his convoy at Baghdad airport, an attack that carried US-Iranian hostilities into uncharted waters.

The Iraqi parliament passed a resolution calling for an end to all foreign troop presence, reflecting the fears of many in Iraq that Friday’s strike could engulf them in another war between two bigger powers long at odds in Iraq and across the region.

Iran said Sunday that it was ending its commitment to limit enrichment of uranium as part of its 2015 nuclear deal with world powers. State television reported Sunday that Iran will no longer abide by the deal, which restricted nuclear development in exchange for the easing of crippling economic sanctions. The agreement limited Tehran's uranium enrichment, the amount of enriched uranium it could stockpile and nuclear research and development.

Foreign Minister Mohammad Javad Zarif had said earlier Sunday that recent events meant Iran would take an even bigger step away from the deal than it had initially planned, and added that Iran would still cooperate with the International Atomic Energy Agency.

US President Donald Trump has sent a series of Twitter posts threatening to hit 52 Iranian sites, including targets important to Iranian culture, if Tehran attacks Americans or US assets to avenge Soleimani’s death. He also threatened  to charge Iraq sanctions they’ve never seen before if US troops were required to leave the country.