The Latest: Standoff escalates after Iran closes Strait of Hormuz over US blockade

Iran reversed its decision to reopen the Strait of Hormuz and warned that it would continue to block transit through the strait as long as the U.S. blockade of Iranian ports remained in effect.

The escalating standoff over the critical choke point threatened to deepen the energy crisis roiling the global economy and push the two countries toward renewed conflict, even as mediators expressed confidence that a new deal was within reach.

The strait is closed until the U.S. blockade is lifted, Iran’s Revolutionary Guard navy said Saturday night. Hours earlier, two gunboats from Iran’s Revolutionary Guard opened fire on a tanker transiting the Strait of Hormuz, the British military’s United Kingdom Maritime Trade Operations center said. It reported that the tanker and crew were safe, without identifying the vessel or its destination.

Roughly one-fifth of the world’s oil passes through the strait and further limits would squeeze the already constrained supply, driving prices higher once again. Meanwhile, a 10-day truce between Israel and the Iran-backed Hezbollah militant group in Lebanon appeared to be holding.

The fighting in the Middle East conflict, which is approaching the two-month mark, has killed at least 3,000 people in Iran, nearly 2,300 in Lebanon, 23 in Israel and more than a dozen in Gulf Arab states. Thirteen U.S. service members have also been killed.

Here is the latest:

Iran’s chief negotiator says his country wants “a lasting peace so that war is not repeated again.”

Parliamentary Speaker Mohammad Bagher Qalibaf made the comments in a televised interview late Saturday, a few days before a ceasefire deadline is set to expire, according to Iranian state media.

“What is fundamental for us is distrust of the United States,” he said. “At the same time, we have good intentions and seek a lasting peace — one that prevents the recurrence of war.”

He said that the Islamabad negotiations didn’t address the mistrust, but that the U.S. and Iranian negotiators “reached a more realistic understanding of one another.”

He said that the two sides achieved progress in the Islamabad talks, but disagreement remained on some key issues, including the nuclear program and the Strait of Hormuz.

“The gaps remain wide and some fundamental issues are still unresolved,” he said.

He didn’t elaborate with further details.

The Lebanese army said in a statement Sunday that it reopened the Khardali road that links the southern city of Nabatiyeh with the town of Marjayoun.

The army said that it also reopened the road that links the port city of Tyre with the village of Bourj Rahhal. The army is also working on reopening other roads, including a bridge on the Litani River in the village of Tayr Filsay.

During Israel’s invasion of southern Lebanon over the past several weeks, Israel’s air force has destroyed several bridges on the river.

After a 10-day ceasefire was declared as of midnight Thursday, the Lebanese army and the Litani Authority have been working on putting up temporary bridges to replace the destroyed ones.

Iran’s parliamentary Speaker Mohammed Bagher Qalibaf says the Strait of Hormuz will remain closed as long as the U.S. imposes a naval blockade on Iran.

“It is impossible for others to pass through the Strait of Hormuz while we cannot,” he said in televised comments aired by Iranian semiofficial media late Saturday.

Qalibaf, who is Iran’s chief negotiator with the United States, said that the strait is now under Iran’s control, linking the choke point’s reopening to the U.S. lifting of its blockade.

“If the U.S. does not lift the blockade, traffic in the Strait of Hormuz will definitely be restricted,” he said.

He said that the ceasefire was on verge of collapse when the U.S. attempted to mine-clear the strait.

He said Iran viewed the U.S. attempt as a violation of the ceasefire.

“The situation escalated to the point of conflict but the enemy retreated,” he said.

Israel’s military says another soldier died in combat in southern Lebanon, the second death announced in under 12 hours.

It brought the total number of soldiers killed in Lebanon to 15, and was the second soldier killed in combat since the ceasefire.

The military said that another soldier was badly wounded, along with four moderately wounded and four slightly injured.

The navy of Iran’s Revolutionary Guard Corps said that it extended the closure to the corridor it had earlier designated for the safe passage of vessels through the strategic waterway and declared the strait fully closed until the U.S. blockade on Iranian ports and ships is lifted.

On Friday, Iran said that vessels could move through the strait in coordination with it and against the payment of a toll.

But in a statement late Saturday carried by Iran’s state media, the navy warned that any violating vessel would be targeted.

Iran considers the U.S. blockade a violation of the ceasefire between the two countries. Two vessels were attacked earlier on Saturday in the Strait of Hormuz and off Oman’s coast, at least one of them by Iranian gunboats.

Excavators remove rubble from destroyed buildings that were hit on Thursday by Israeli airstrikes, as they keep searching for victims in Tyre city, southern Lebanon, Saturday, April 18, 2026. (AP Photo/Bilal Hussein)

A woman member of the Basij paramilitary, affiliated with Iran's Revolutionary Guard, holds her gun during a state-organized rally in support of the supreme leader marking National Girl's Day in Tehran, Iran, Friday, April 17, 2026. (AP Photo/Vahid Salemi)

President Donald Trump listens to speeches before signing an executive order in the Oval Office of the White House, Saturday, April 18, 2026, in Washington. (AP Photo/Julia Demaree Nikhinson)

Barber Mohammad Mehdi cuts the hair of his client Ayman Al Zein inside his shop, which was damaged in an Israeli airstrike that also damaged Al Zein's shop, in Dahiyeh, Beirut's southern suburbs, Lebanon, Saturday, April 18, 2026. (AP Photo/Hassan Ammar)

The sun rises behind a tanker anchored in the Strait of Hormuz off the coast of Qeshm Island, Iran, Saturday, April 18, 2026. (AP Photo/Asghar Besharati)

CHERNOBYL, Ukraine (AP) — On contaminated land that is too dangerous for human life, the world’s wildest horses roam free.

Across the Chernobyl exclusion zone, Przewalski’s horses — stocky, sand-colored and almost toy-like in appearance — graze in a radioactive landscape larger than Luxembourg.

On April 26, 1986, an explosion at the nuclear power plant in Ukraine sent radiation across Europe and forced the evacuation of entire towns, displacing tens of thousands. It was the worst nuclear disaster in history.

Four decades on, Chernobyl — which is transliterated as “Chornobyl” in Ukraine — remains too dangerous for humans. But the wildlife has moved back in.

Wolves now prowl the vast no-man’s-land spanning Ukraine and Belarus, and brown bears have returned after more than a century. Populations of lynx, moose, red deer and even free-roaming packs of dogs have rebounded.

Przewalski’s horses, native to Mongolia and once on the brink of extinction, were introduced here in 1998 as an experiment.

Known as “takhi” in Mongolia (“spirit”), the horses are distinct from domestic breeds, with 33 pairs of chromosomes compared with 32 in domesticated horses. The modern name comes from the Russian explorer who first formally identified them.

“The fact that Ukraine now has a free-ranging population is something of a small miracle,” said Denys Vyshnevskyi, the zone’s lead nature scientist.

With human pressure gone, parts of the exclusion zone now resemble European landscapes from centuries past, he said, adding: “Nature recovers relatively quickly and effectively.”

The transformation is visible everywhere. Trees pierce abandoned buildings, roads dissolve into forest, and weathered Soviet-era signs stand beside leaning wooden crosses in overgrown cemeteries.

Hidden cameras show the horses adapting in unexpected ways. They seek shelter in crumbling barns and deserted homes, using them to escape harsh weather and insects — even bedding down inside.

The animals live in small social groups — typically one stallion with several mares and their young — alongside separate bands of younger males. Many died after their introduction, but others adapted.

Tracking them takes time. Vyshnevskyi often drives alone for hours, setting motion-sensitive camera traps in camouflaged casings attached to trees.

Despite persistent radiation, scientists have not recorded widespread die-offs, though subtler effects are evident. Some frogs have developed darker skin, and birds in higher-radiation areas are more likely to develop cataracts.

However, new threats have emerged.

Russia’s 2022 invasion brought fighting through the exclusion zone as troops advanced toward Kyiv, digging defenses into contaminated soil. Fires linked to military activity swept through forests.

Harsh wartime winters have also taken a toll. Damage to the power grid left surrounding managed areas without resources, and scientists report increases in fallen trees and dead animals — casualties of both extreme conditions and hastily built fortifications.

“Most forest fires are caused by downed drones,” said Oleksandr Polischuk, who leads a firefighting unit in the zone. “Sometimes we have to travel dozens of kilometers to reach them.”

Fires can send radioactive particles back into the air.

Today, the zone is no longer just an accidental refuge for wildlife. It has become a heavily monitored military corridor, marked by concrete barriers, barbed wire and minefields — a landscape of what some describe as grim beauty.

Personnel rotate in and out to limit radiation exposure. Chernobyl is likely to remain off-limits for generations — too dangerous for people, yet full of life.

“For those of us in conservation and ecology, it’s kind of a wonder,” Vyshnevskyi said. “This land was once heavily used — agriculture, cities, infrastructure. But nature has effectively performed a factory reset.”

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Associated Press writers Dmytro Zhyhinas and Vasilisa Stepanenko contributed to this report.

Denys Vyshnevskyi, researcher at the Chornobyl Radiation and Ecological Biosphere Reserve, stands in front of a dead wild Przewalski horse in a forest inside the Chernobyl exclusion zone, Ukraine, Wednesday, April 8, 2026. Chornobyl is the Ukrainian name for the city. (AP Photo/Evgeniy Maloletka)

Abandoned houses are seen overgrown with vegetation at the Chernobyl exclusion zone in Prypiat, Ukraine, Monday, April 6, 2026. Chornobyl is the Ukrainian name for the city. (AP Photo/Evgeniy Maloletka)

Wild Przewalski horses graze in a forest inside the Chernobyl exclusion zone, Ukraine, Wednesday, April 8, 2026. Chornobyl is the Ukrainian name for the city. (AP Photo/Evgeniy Maloletka)