The expanding war in Iran entered its second week on Saturday amid renewed uncertainty about how or when hostilities will end, as U.S. President Donald Trump declared he would only accept Tehran’s “unconditional surrender” and Israel traded fresh attacks with Iran and Lebanon.

Trump’s comments ​on social media on Friday came hours after Iran’s president announced that unnamed countries had begun mediation efforts, briefly raising the possibility, however faint, of a diplomatic resolution a week after ‌the U.S. and Israel launched strikes on Iran, Reuters reported.

“There will be no deal with Iran except UNCONDITIONAL SURRENDER!” Trump wrote. “After that, and the selection of a GREAT & ACCEPTABLE Leader(s), we, and many of our wonderful and very brave allies and partners, will work tirelessly to bring Iran back from the brink of destruction, making it economically bigger, better, and stronger than ever before.”

Trump has offered shifting explanations of his war aims, raising the possibility of an extended regional conflict that has already spilled well beyond Iran’s borders, shaken global financial markets ​and sent oil prices soaring.

In response to the attack, Iran has targeted Israel as well as multiple Gulf states that host U.S. military installations.

Inside Israel on Friday, explosions could be heard as Israeli defenses ​activated to shoot down incoming Iranian fire. The UAE, Kuwait, Qatar, Bahrain and Saudi Arabia all reported fresh drone and missile attacks.

Meanwhile, Israel pursued a major expansion of the ⁠war in Lebanon, pounding the capital Beirut on Friday after ordering an unprecedented evacuation of the city’s entire southern suburbs.

Israel also launched a new wave of attacks on Iran, saying 50 of its warplanes had hit a bunker ​still being used by Iran’s leadership beneath slain Supreme Leader Ayatollah Ali Khamenei’s destroyed Tehran compound.

Early on Saturday, Iran’s semi-official Tasnim news agency reported that Mehrabad Airport in Tehran had been struck.

There was no immediate comment from Iran’s Revolutionary ​Guard or Hezbollah.

Israel has extended its bombing to Lebanon to root out Hezbollah, the Shi’ite militia allied to Iran that has been a dominant faction in Lebanese politics since the 1980s. Hezbollah fired on Israel this week to avenge the death of Khamenei.

“We’re sleeping here in the streets – some in cars, some on the street, some on the beach,” said Jamal Seifeddin, 43, who fled Beirut’s southern suburbs and spent the night on the streets in the downtown district.

About 300,000 people have been displaced in Lebanon in the past four days, ​according to the Norwegian Refugee Council.

The Israeli military says it has destroyed 80% of Iran’s air-defense systems in the first week of the campaign and disabled more than 60% of its missile launchers.

MARKETS SWOON

Trump’s demand for Iran’s surrender, ​and the likelihood that it would complicate any quick path to ending the conflict, sent European and U.S. stock indexes tumbling on Friday. Oil prices hit their highest prices in years with the critical shipping lane of the Strait of Hormuz effectively ‌closed down.

Trump ⁠told Reuters in a telephone interview on Thursday that he must have a say in selecting Iran’s new supreme leader to replace Khamenei, killed on the war’s first day, a demand he repeated on Friday in a remarkable assertion of power over the country of more than 90 million people.

Iran’s U.N. ambassador, Amir Saeid Iravani, told reporters that new leadership would be chosen “in accordance with our constitutional procedures and solely by the will of the Iranian people – without any foreign interference.”

Israel has said openly that it aims to overthrow Iran’s ruling system. It has been bombing parts of western Iran to support Iranian Kurdish militias who hope to exploit the war to seize towns near the frontier, according to three sources ​familiar with Israel’s talks with the factions.

Iran has cast the ​war as an unprovoked attack and describes the ⁠killing of Khamenei as an assassination.

HUNDREDS KILLED SO FAR

Earlier on Friday, Iran President Masoud Pezeshkian posted on social media: “Some countries have begun mediation efforts.” He did not identify the countries or provide further details.

Russia is providing Iran with locations of U.S. warships and aircraft in the Middle East after Iran’s ability to locate U.S. forces was degraded, the Washington ​Post reported, citing three officials familiar with the intelligence.

Russian missions in the U.S. did not immediately respond to requests for comment on the report.

Trump met with executives from ​seven defense contractors on Friday, who ⁠he later said had agreed to accelerate weapons production. The administration has been pressuring contractors as Iran and other recent operations have drawn down supplies.

Karoline Leavitt, a White House spokeswoman, said the U.S. has enough weapons stockpiles to meet the needs of its Iran operations, which she said would take about four to six weeks to complete.

At least 1,332 people have been killed in Iran since the U.S. and Israel launched strikes on February 28, Iravani said, citing the Iranian Red Crescent ⁠Society.

The Lebanese health ​ministry has reported 123 people killed and 683 wounded as a result of Israeli attacks. Iranian attacks have killed 11 people in ​Israel since the war started, and at least six U.S. service members have been killed.

Two U.S. officials told Reuters that military investigators believed it was likely that U.S. forces were responsible for an apparent strike on an Iranian girls’ school that killed scores of children on the first day ​of the war. The investigators have not yet reached a final conclusion.

Iranian sailors rescued from a torpedo attack on an Iranian warship in the Indian Ocean are recovering in a hospital in southern Sri Lanka, officials said on Thursday, a day after the strike killed dozens of crew members and left many others missing.

Sri Lankan authorities said 32 sailors who survived the attack were taken to Karapitiya Teaching Hospital in the port city of Galle for treatment of injuries and exhaustion following the explosion and sinking of the vessel.

Hospital officials indicated that most of the survivors suffered relatively minor wounds and were expected to recover, Reuters reported.

The Iranian warship, identified by Sri Lankan officials as the frigate IRIS Dena, was sunk on Wednesday after being struck by a torpedo fired from a U.S. submarine in the Indian Ocean, roughly 40 nautical miles off Sri Lanka’s southern coast.

The incident occurred far from the main theatres of fighting between Iran, Israel and the United States, marking a dramatic widening of the conflict at sea.

Rescue teams responding to a distress call recovered at least 87 bodies from the water, while around 60 crew members remain missing from the roughly 180 people believed to have been aboard the ship.

Sri Lankan navy personnel reported finding survivors floating in the sea amid debris and oil slicks after the vessel sank.

U.S. Defense Secretary Pete Hegseth confirmed that an American submarine carried out the strike, saying the Iranian warship had been targeted with a torpedo while operating in international waters.

A video released by the Pentagon appeared to show a large explosion ripping through the rear of the vessel before it began to sink.

The IRIS Dena, commissioned in 2021, had recently participated in multinational naval exercises in India before beginning its return voyage to Iran when it was attacked.

Sri Lankan authorities said search operations for missing crew members are continuing in the waters south of the island.

The strike is one of the most significant naval incidents of the escalating confrontation involving Iran, the United States and Israel, extending hostilities into the wider Indian Ocean region.

Iran has postponed a planned public mourning ceremony for Supreme Leader Ayatollah Ali Khamenei in Tehran, days after he was killed alongside several family members in joint US-Israeli air strikes.

State-affiliated Tasnim news agency reported that the delay was due to logistical challenges, including requests from people across multiple provinces who wish to attend. Analysts meanwhile stated security risks were also a consideration.

The ceremony had initially been scheduled to begin at 10pm local time at Tehran’s Imam Khomeini Prayer Hall and to continue over three days. Hojjatoleslam Mahmoudi, head of Iran’s Islamic Propagation Council, had earlier urged citizens to attend in large numbers to pay their respects.

Security concerns are however looming over the event. With millions expected to mourn, authorities face the risk of potential further attacks amid escalating hostilities between Iran, Israel and the United States.

When Ayatollah Ruhollah Khomeini, founder of the Islamic Republic, died in 1989, an estimated 10 million people attended his funeral.

Khamenei, 86, had served as Iran’s supreme leader since 1989, succeeding Khomeini after the 1979 revolution. As supreme leader, he held ultimate authority over the armed forces, judiciary and key state institutions, while serving as the country’s highest religious authority.

Attention has now shifted to the question of succession. Ayatollah Ahmad Khatami, a senior cleric and member of both the Guardian Council and the Assembly of Experts, said the process of selecting a new leader is nearing completion but acknowledged that the country remains in a “war situation.”

Under Iran’s constitution, the 88-member Assembly of Experts is responsible for appointing the supreme leader by simple majority vote. Candidates must be senior Islamic jurists with strong political judgment, administrative capability and religious credentials. Among those widely considered a leading contender is Khamenei’s second son, Mojtaba Khamenei.

Meanwhile, Israel’s Defence Minister warned that any successor who continues policies hostile to Israel would face the threat of assassination.

In a statement posted online on Wednesday, he said any future Iranian leader pursuing the destruction of Israel or threatening the United States and regional allies would be considered a target.

US President Donald Trump also commented publicly on Iran’s future leadership, saying the “worst-case scenario” would be another figure opposed to US interests.

Regional analysts say Iran’s political system has long prepared for the possibility of Khamenei’s death, with institutional structures designed to ensure continuity of command during crises.

Even so, the coming days are expected to be pivotal, as the country navigates both mass public mourning and a high-stakes transition of power under the shadow of war.