DUBAI, United Arab Emirates — President Donald Trump said Friday that he would not seek a deal with Iran without the country’s “unconditional surrender” as Washington warned of a forthcoming bombing campaign that officials said would be the most intense of the weeklong conflict.

Israel said it had begun a broad wave of strikes on Tehran early today. As Israeli warplanes bombed the Iranian capital and Beirut, Iran launched more retaliatory strikes against Israel and Gulf countries on the seventh day of the war. Many thunder-like booms rumbled over Jerusalem just past midnight local time as Israel said it was working to intercept missiles launched from Iran.

The U.S. and Israel have battered Iran with strikes, targeting its military capabilities, leadership and nuclear program. The stated goals and timelines for the war have repeatedly shifted, as the U.S. has at times suggested it seeks to topple Iran’s government or elevate new leadership from within.

Meanwhile, Russia has provided Iran with information that could help Tehran strike the U.S. military, according to two officials familiar with U.S. intelligence on the matter. Russian President Vladimir Putin had a call Friday with Iranian President Masoud Pezeshkian, expressing his condolences over the killing of Iranian Supreme Leader Ayatollah Ali Khamenei, the Kremlin said.

In other developments, evidence emerged suggesting that an explosion that killed scores of Iranian students at a school was likely caused by U.S. airstrikes that also hit an adjacent compound associated with the regime’s Revolutionary Guard.

Qatar’s energy minister, Saad al-Kaabi, warned in an interview with the Financial Times that the war could “bring down the economies of the world,” predicting a widespread shutdown of Gulf energy exports that could send oil to $150 a barrel.

The price for a barrel of benchmark U.S. crude rose above $90 on Friday for the first time in more than two years.

Russia has provided Iran with information that could help Tehran strike American warships, aircraft and other assets in the region, according to two officials familiar with U.S. intelligence on the matter.

The people, who were not authorized to comment publicly and spoke on the condition of anonymity, cautioned that the U.S. intelligence has not uncovered that Russia is directing Iran on what to do with the information.

Still, it’s the first indication that Moscow has sought to get involved in the war that the U.S. and Israel launched on Iran a week ago.

In a social media post Friday, Trump said “There will be no deal with Iran except UNCONDITIONAL SURRENDER!” After a surrender, “and the selection of a GREAT & ACCEPTABLE Leader(s),” he wrote, the U.S. and its allies will help rebuild Iran, making it “economically bigger, better, and stronger than ever before.”

Those comments were likely to raise further questions about the endgame of the war. The fighting has killed at least 1,230 people in Iran, more than 200 in Lebanon and around a dozen in Israel, according to officials in those countries. Six U.S. troops have been killed.

Iranian President Masoud Pezeshkian wrote on social media that “some countries” had begun mediation efforts, without elaborating.

Trump has also told media outlets that he should be involved in choosing a replacement for Supreme Leader Ayatollah Ali Khamenei, who was killed in the opening strikes of the war. Trump spoke dismissively of Khamenei’s son, Mojtaba Khamenei — a front-runner to replace his father — calling him “a lightweight.”

Iranian state television reported Friday that a leadership council had started discussing how to convene the country’s Assembly of Experts, which will select the new supreme leader.

Buildings associated with the 88-member clerical panel, have been attacked during the Israeli-American air campaign. Israel has said it would target the next supreme leader if he poses a threat.

Israel’s military said it had begun a “broad-scale” wave of strikes in Tehran. The military has said that over the past week, it has heavily bombed an extensive underground bunker that Iranian leaders had planned to use during the hostilities.

Witnesses described Israeli airstrikes as particularly intense, shaking homes in the area and sending columns of smoke rising. Others reported explosions around the Iranian city of Kermanshah, an area home to multiple missile bases. They spoke anonymously for fear of retribution.

Treasury Secretary Scott Bessent said in a television interview that the “biggest bombing campaign” of the war was still to come.

In Israel, the sound of explosions could be heard in Tel Aviv throughout Friday after warnings about missiles incoming from Iran. Air defense systems worked to intercept the barrage. Five soldiers have been wounded in the fighting with Hezbollah, Israel’s military said.

Elsewhere, new information surfaced suggesting that a deadly Feb. 28 explosion at a school in the Iranian city of Minab, some 680 miles southeast of Tehran, was likely caused by U.S. airstrikes. The information included satellite images, expert analysis, a U.S. official and public information released by U.S. and Israeli military forces.