BEIRUT (AP) — Iran said it fully reopened the Strait of Hormuz to commercial vessels, but questions lingered Saturday about how much freedom ships actually had to transit the waterway as Tehran maintained its grip on the who got through and threatened to close it again if the U.S. kept in place its blockade of Iranian ships and ports.

Iran’s Friday announcement about the opening of the crucial body of water, through which 20% of the world’s oil is shipped, came as a 10-day truce between Israel and the Iranian-backed Hezbollah militant group in Lebanon appeared to hold.

U.S. President Donald Trump, meanwhile, said the American blockade “will remain in full force” until Tehran reaches a deal with the U.S., including on its nuclear program.

Asked by a reporter Friday night what he will do if there’s no deal when the ceasefire expires next week, Trump said, “I don’t know. … But maybe I won’t extend it, so you’ll have a blockade and unfortunately we’ll have to start dropping bombs again.” But he also told reporters accompanying him aboard Air Force One to Washington that a deal is “going to happen,” and flatly rejected the idea of restrictions or tolls by Iran on the Strait of Hormuz.

Trump had earlier celebrated the Iranian announcement, posting on social media that the strait was “fully open and ready for full passage.” But minutes later, he issued another post saying the U.S. Navy’s blockade would continue “UNTIL SUCH TIME AS OUR TRANSACTION WITH IRAN IS 100% COMPLETE.”

Iranian Foreign Minister Abbas Araghchi posted on X that ships would use routes designated by the Islamic Republic in coordination with Iranian authorities, suggesting Iran planned to retain some level of control over the channel. It was not clear if vessels would have to pay tolls.

Iranian officials said the blockade was a violation of last week’s ceasefire agreement between Iran and the U.S. The strait “will not remain open” if the blockade continues, Iran’s parliamentary speaker, Mohammad Bagher Qalibaf, posted on X early Saturday.

A data firm, Kpler, said movement through the strait remained confined to corridors requiring Iran’s approval.

U.S. forces have sent 21 ships back to Iran since the blockade began on Monday, U.S. Central Command said on X.

Trump says new talks could happen soon

Trump imposed the blockade as part of his effort to force Iran to open the strait and accept a Pakistan-brokered ceasefire to end almost seven weeks of war that has raged between Israel, the U.S. and Iran.

The president’s decision to continue the blockade despite Iran’s announcement appeared aimed at sustaining pressure on Tehran as the fate of the two-week ceasefire reached last week remained uncertain.

Direct talks between the U.S. and Iran last weekend were inconclusive, as the two nations could not agree about Iran’s nuclear program and other points.

Trump suggested a second round of talks could happen this weekend.

“The Iranians want to meet,” he said in a brief telephone interview with the news outlet Axios. “They want to make a deal. I think a meeting will probably take place over the weekend.”

Oil prices fell Friday on hopes the U.S. and Iran were drawing closer to an agreement . The head of the International Energy Agency had warned that the energy crisis could get worse if the strait did not reopen.

Two Iranian semiofficial news agencies seemed to challenge Araghchi’s announcement about the strait.

Considered close with Iran’s powerful Revolutionary Guard, the Fars news agency issued a series of posts on X criticizing what it said was a lack of clarity over the decision to reopen the waterway and a “strange silence from the Supreme National Security Council and the negotiating team.”

Iran’s Supreme National Security Council has recently acted as the country’s de facto top decision-making body, amid doubts over the status of the new supreme leader, Mojtaba Khamenei, who was reportedly wounded early in the war.

The Mehr news agency also said the decision to reopen the strait needed “clarification” and required the supreme leader’s approval.

Truce in Lebanon could help US-Iran peace efforts

The ceasefire in Lebanon could clear one major obstacle to an agreement between Iran, the United States and Israel to end the war. But it was unclear to what extent Hezbollah would abide by a deal it did not play a role in negotiating and which will leave Israeli troops occupying a stretch of southern Lebanon.

Trump said in another post that Israel is “prohibited” by the U.S. from further strikes on Lebanon and that “enough is enough” in the Israel-Hezbollah war.

The State Department said the prohibition applies only to offensive attacks and not to actions taken in self-defense.

Shortly before Trump’s post, Israeli Prime Minister Benjamin Netanyahu said Israel agreed to the ceasefire in Lebanon “at the request of my friend President Trump,” but that the campaign against Hezbollah is not complete.

He claimed Israel had destroyed about 90% of Hezbollah’s missile and rocket stockpiles and added that Israeli forces “have not finished yet” with the dismantling of the group.

Celebrations in Beirut

In Beirut, celebratory gunshots rang out at the start of the truce. Displaced families began moving toward southern Lebanon and Beirut’s southern suburbs despite warnings by officials not to return to their homes until it became clear whether the ceasefire would hold.

The Lebanese army and U.N. peacekeepers in southern Lebanon had reported sporadic artillery shelling in some parts of southern Lebanon in the hours after the ceasefire took effect.

An Israeli strike in the area of Kounine hit a car and a motorcycle, killing one person and wounding three, including a Syrian citizen, the Lebanese Health Ministry said Friday. It was the first airstrike and first fatality reported since the truce took effect.

There was no immediate response from the Israeli army or Hezbollah.

An end to Israel’s war with Hezbollah was a key demand of Iranian negotiators, who previously accused Israel of breaking last week’s ceasefire with strikes on Lebanon. Israel had said that deal did not cover Lebanon.

The fighting has killed at least 3,000 people in Iran, more than 2,290 in Lebanon, 23 in Israel and more than a dozen in Gulf Arab states. Thirteen U.S. service members have also been killed.

Israel says it will keep troops in Lebanon

Israel’s hard-line Defense Minister Israel Katz said Israel would continue to hold all the places where it is currently stationed, including a buffer zone extending 10 kilometers (6 miles) into southern Lebanon. He said many homes in the area would be destroyed and Lebanese residents will not return.

Hezbollah has said Lebanese people have “the right to resist” Israeli occupation and that their actions “will be determined based on how developments unfold.”

Israel and Hezbollah have fought several wars and have been fighting on and off since the day after the start of the Israel-Hamas war in Gaza. Israel and Lebanon reached a deal to end the earlier fighting in November 2024, but Israel has kept up near-daily strikes in what it says is an effort to prevent the Iran-backed militant group from regrouping. That escalated into another invasion after Hezbollah again began firing missiles at Israel in response to its war on Iran.

Mediators seek compromise on three points

In the Iran war, mediators are pushing for compromise on three main points: Iran’s nuclear program, the Strait of Hormuz and compensation for wartime damages, according to a regional official involved in the mediation efforts.

Trump on Friday suggested Iran has agreed to hand over its enriched uranium.

“The USA will get all the nuclear dust,” Trump said in a speech in Arizona. “We’re going to get it by going in with Iran with lots of excavators.”

Nuclear dust is the shorthand Trump frequently uses to refer to the highly enriched uranium that is believed buried under nuclear sites the U.S. bombed during last year’s 12-day war between Israel and Iran.

If true, it would be a major concession from Iran and would lock in a key demand of the U.S. to end the conflict. Neither Iran nor countries acting as intermediaries in the conflict have said Tehran has made such an agreement.

Trump said no money would exchange hands to end the war.

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Madhani reported from Washington. Associated Press writers Matthew Lee and Ben Finley in Washington, Samy Magdy and Amir Rajdy in Cairo, Munir Ahmed in Islamabad, Abby Sewell in Beirut and Melanie Lidman in Tel Aviv, Israel, contributed to this report.

CAIRO (AP) — The dueling blockades in the Strait of Hormuz lurched into uncharted waters on Saturday. The United States pressed ahead with its campaign to choke off Iranian ports and Iran reversed an initial move to reopen the waterway, firing on a ship attempting to pass.

Confusion over the critical chokepoint threatened to deepen the energy crisis roiling the global economy and push the two countries toward renewed conflict, even as mediators expressed confidence a new deal was within reach.

Iran’s joint military command said on Saturday that “control of the Strait of Hormuz has returned to its previous state … under strict management and control of the armed forces.” It warned that it would continue to block transit through the strait as long as the U.S. blockade of Iranian ports remained in effect.

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 on Saturday. It reported the tanker and crew as safe, without identifying the vessel or its destination. TankerTrackers.com reported vessels were forced to turn around in the strait, including an Indian-flagged super tanker, after they were fired on by Iran.

Iran announced earlier Saturday it was reimposing restrictions on the strait in response to a U.S. blockade on Iranian shipping and ports. Iran has prevented vessels from crossing throughout the seven-week-long war, except for ones it authorizes.

Ebrahim Azizi, head of the Iranian parliament’s National Security Commission, said that the strait was “returning to the status quo,” which he had earlier described as ships requiring Iranian naval authorization and toll payment before transiting.

The shift came a day after Iran’s Foreign Minister Abbas Araghchi declared the strait open while a 10-day trucewas announced between Israel and the Iranian-backed Hezbollah militant groupin Lebanon. An end to Israel’s war with Hezbollah was a key demand of Iranian negotiators, who previously accused Israel of breaking last week’s ceasefire with strikes on Lebanon. Israel had said that deal did not cover Lebanon.

U.S. President Donald Trump first appeared to take a similar position on reopening the strait before later saying the American blockade“will remain in full force” regardless of what Iran does until a deal is reached, including about Iran’s nuclear program.

Even as the U.S.-Iran ceasefire appeared to hold, the back-and-forth over the strait — through which roughly one-fifth of the world’s oil typically passes — highlighted how easily it could unravel

Control over the strait has proven to be one Iran’s main points of leverage and prompted the United States to deploy forces and initiate a blockade on Iranian ports as part of an effort to force Iran to accept a Pakistan-brokered ceasefireto end almost seven weeks of warthat has raged between Israel, the U.S. and Iran.

A data firm, Kpler, said movement through the strait remained confined to corridors requiring Iran’s approval.

U.S. forces have sent 21 ships back to Iran since the blockade began on Monday, U.S. Central Command said on X.

Pakistan announces progress toward new deal

Despite the escalation in the Strait of Hormuz, Pakistani officials say the United States and Iran are still moving closer to a deal ahead of the April 22 ceasefire deadline.

The ceasefire in Lebanon could clear one major obstacleto an agreement. Speaking at a diplomatic forum in Antalya, Turkey, Pakistan’s Foreign Minister Ishaq Dar said the ceasefire in Lebanon was a positive sign, noting that fighting between Israel and Hezbollah had been a key sticking point before talks in Islamabad ended “very close” to an agreement last weekend.

Pakistan’s army chief Field Marshal Asim Munir visited Tehran, while Prime Minister Shehbaz Sharif met with Turkish President Recep Tayyip Erdogan and Qatar’s Emir Tamim bin Hamad Al Thani in Antalya, the military and Sharif’s office said. Pakistan is expected to host a second round of talks between Iran and the U.S. early next week.

Questions linger about Lebanon truce

Even though mediators were optimistic, it was unclear to what extent Hezbollah would abide by a truce it did not play a role in negotiating and which will leave Israeli troops occupying a stretch of southern Lebanon.

Trump said in another post that Israel is “prohibited” by the U.S. from further strikes on Lebanon and that “enough is enough” in the Israel-Hezbollah war.

The State Department said the prohibition applies only to offensive attacks and not to actions taken in self-defense.

Shortly before Trump’s post, Israeli Prime Minister Benjamin Netanyahu said Israel agreed to the ceasefire in Lebanon “at the request of my friend President Trump,” but that the campaign against Hezbollah is not complete.

He claimed Israel had destroyed about 90% of Hezbollah’s missile and rocket stockpiles and added that Israeli forces “have not finished yet” with the dismantling of the group.

In Beirut, displaced families began moving toward southern Lebanonand Beirut’s southern suburbs despite warnings by officials not to return to their homes until it became clear whether the ceasefire would hold.

The Lebanese army and U.N. peacekeepers in southern Lebanon reported sporadic artillery shelling in some parts of southern Lebanon in the hours after the ceasefire took effect.

The war, which began with U.S. and Israeli strikes on Feb. 28, has killed at least 3,000 people in Iran, more than 2,290 in Lebanon, 23 in Israel and more than a dozen in Gulf Arab states. Thirteen U.S. service members have also been killed.