Kuwait set up shelters in the country's ministries complex following U.S. strikes on Iran's nuclear facilities. The shelters can accommodate around 900 people, the Finance Ministry said in a statement on X.

The United States has a military presence across the major oil-producing region, with bases in Kuwait as well as in Iraq, Qatar, Bahrain and the United Arab Emirates

The IDF said the American strikes on Iran's nuclear facilities were carried out in complete cooperation with Israel, but without direct Israeli involvement. Israel resumed its strike on Iran soon after.

IAEA chief Rafael Grossi called an emergency meeting of his agency's 35-nation Board of Governors after the U.S. said it carried out military strikes on Iranian nuclear facilities. Iran's nuclear chief Mohammad Eslami urged Grossi to condemn the U.S. action and take appropriate measures, according to Iran's SNN news network.

European Union foreign policy chief Kaja Kallas on Sunday urged a return to the negotiating table, after U.S. forces struck three Iranian nuclear sites. "I urge all sides to step back, return to the negotiating table and prevent further escalation," she said in a post on X, adding that EU foreign ministers will discuss the situation on Monday.

A senior Iranian source told the Reuters news agency on Sunday that most of the highly enriched uranium a the Fordow nuclear facility was moved to an undisclosed location, before the U.S. strike. He said the staffing at the site was also reduced to a minimum

Iran threatened once again to withdraw from the Nuclear Non-Proliferation Treaty (NPT). Parliament Foreign Policy Committee Head Abbas Golroo said on X after the U.S. strikes on three Iranian nuclear facilities. Article 10 states that an NPT member has "the right to withdraw from the Treaty if it decides that extraordinary events have jeopardized the supreme interests of its country."

Lebanese Prime Minister Nawaf Salam on Sunday warned against any involvement in the fighting between Israel and Iran. Salam directed his warnings to the Iran-backed Hezbollah terror group, Iran's main proxy in the region.

The US expanded its bombing of Iranian nuclear sites after Israeli strikes failed to cause sufficient damage. A joint U.S. Central Command (CENTCOM) and IDF damage assessment concluded earlier strikes on Natanz and Isfahan nuclear facilities were only partially effective, with Iranian reconstruction possible within months to a year.

Consequently, the Israeli Air Force conducted a follow-up strike on Isfahan yesterday, while the U.S. allocated two additional Massive Ordnance Penetrator (MOP GBU-57) bunker-buster bombs to definitively destroy centrifuges in Natanz’s underground halls.

Iran says long-range missiles were used to attack Israel on Sunday. In a statement, the Iranian Revolutionary Guard Corps (IRGC) said it used new evasive tactics to avoid aerial defenses in the latest strike and claimed the missiles targeted the Ben-Gurion International Airport, the Institute for Biological Research and IDF command and control bases.

The IDF said on Sunday that it renewed its air strikes on military targets in western Iran after the missile strikes on Israel earlier. The military said it destroyed the rocket launchers used in the latest barrage caused injuries and damage in several impact sites across the country.

Iran launched a large-scale barrage of scores of missiles against Israel on Sunday, hours after the United States officially entered the conflict, prompting widespread sirens, interceptions and explosions across the country. Over 20 people were wounded including at least 3 children

At least 30 missiles were launched in two waves of attack targeting the north and central areas and Jerusalem and its surroundings. Emergency teams rushed to 10 impact sites including in Tel Aviv and Haifa. "The entire two apartment blocks were destroyed except for their enforced shelters," a paramedic said, in a location where a missile fell in Tel Aviv.

The IDF reported that only some of the projectiles have been intercepted, and sirens continued to sound in multiple regions, including central and northern Israel.

Emergency services received initial reports of rocket impacts in areas of the Sharon region, the Shfela (central lowlands) and near Haifa. Witnesses also reported hearing loud explosions in the center of the country.

Sirens were heard extensively in the Lachish region, the Gush Dan metropolitan area, and across Sharon. Additional alerts were triggered near Jerusalem, in the West Bank, the Upper and Lower Galilee, the Krayot, the Beit She’an valley and Wadi Ara. Earlier Iranian barrages also caused significant damage around Haifa, even in the absence of sirens in the city.

The Magen David Adom emergency medical service said that teams were dispatched to more than 10 reported strike sites. Approximately 30 rockets have been fired so far from Iran.

Officials in Jerusalem said they believed the Fordow nuclear reactor was destroyed in the American attack. They said the target of the U.S. bombers in Isfahan was not the reactor already hit in the IDF strikes but a different site dug into the mountain where enriched uranium was stored and that the strike caused heavy damage there.

The security government will convene later on Sunday to assess the situation after the American strike on Iran's nuclear sites. Security officials said they believed Iran would renew its attacks on Israel after no missiles were fired in over 24 hours.

Earlier, the IDF said it shot down two hostile aircraft targeting the Arava Desert hours after the U.S. attacked Iran's nuclear facilities in Natanz, Isfahan and Fordow on Sunday.

Iranian authorities said Sunday there was "no danger" to residents in the city of Qom, south of Tehran, following the US attack on a nearby mountain-buried Fordow nuclear enrichment site.

UN Secretary General Antonio Guterres said he was alarmed by the American decision to attack Iran. "This is a dangerous escalation in a region already on the edge and a direct threat to international peace and security," Guterres said. "There is a growing risk that this conflict could rapidly get out of control, with catastrophic consequences for civilians, the region, and the world. I call on Member States to de-escalate and to uphold their obligations under the UN Charter and other rules of international law. At this perilous hour, it is critical to avoid a spiral of chaos. There is no military solution. The only path forward is diplomacy. The only hope is peace."