US, Iran trade attacks for a second day, undermining shaky ceasefire; Teheran says it closed Hormuz

[DUBAI/WASHINGTON] The US and Iran traded air attacks on Thursday (Jun 11) for a second straight day, with US President Donald Trump vowing further strikes if Teheran does not immediately agree to a peace deal.

The escalation in hostilities began earlier this week with the Jun 9 downing of a US Apache helicopter near the Strait of Hormuz, which sparked a series of tit-for-tat attacks across Iran and on US bases around the region.

It was the most serious threat to a fragile ceasefire agreed in April, dampening hopes for a swift end to the war that started in late February with massive US-Israeli joint air strikes on Iran.

The US military said its latest attacks targeted “military surveillance capabilities, communication systems, and air defense sites across Iran” in response to what it called Tehran’s “unwarranted and continued aggression.”

Trump told Fox News reporter Trey Yingst on Wednesday evening the US strikes would stop shortly but that he would resume heavy bombing if Iran’s leaders did not sign an agreement with the US immediately, Yingst wrote on X.

Oil prices rose nearly US$3 following Trump’s threat of escalation, and extended gains in early Asian trade on Thursday.

The military’s Central Command announced the strikes were complete about four hours after they began, soon after midnight in Teheran.

Iran’s Islamic Revolutionary Guard Corps (IRGC) said it had launched counter-attacks on 18 US military targets at airbases in Kuwait and Bahrain, as well as the US Navy’s Fifth Fleet in Bahrain.

It later said it had also targeted the al-Azraq air base in Jordan for a second night running, firing 12 ballistic missiles at the US base.

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Kuwait’s air defences were engaging hostile aerial targets, the US ally’s army said, while Bahraini air defences intercepted and destroyed Iranian aerial attacks, a media adviser to Bahrain’s king said on X.

US denies Iran claim that strait is closed

Iran’s top joint military command also warned it would fire on any vessel trying to pass through the Strait of Hormuz, which has been largely closed for months. Iranian media said two US ships were fired on.

US Central Command denied that the strait was closed or any of its ships struck, saying commercial ships were still transiting the strait despite Iran’s threats.

Iranian news agencies reported explosions in several cities across the country of 93 million, including Sirik, Kargan, Bandar Abbas, Minab, and Karaj near the strait, as well as Varamin far to the north, closer to the Caspian Sea.

US Defence Secretary Pete Hegseth presented the move as an effort to force Iran into a deal to end the conflict. The strikes would “advance our military interests and also enhance our diplomatic position,” he told reporters during a visit to Central Command in Florida.

“We will strike them hard tonight, and hopefully Iran makes a good decision,” he said. “If we need to negotiate with bombs, we’ll negotiate with bombs.”

The US and Iran have traded fire several times since the tentative ceasefire took hold, even as negotiators have unsuccessfully sought an end to the war, now in its fourth month.

Trump has repeatedly said a deal is close, though there has been no sign of a breakthrough, while also threatening to resume bombing.

Early on Wednesday, the US military targeted air defences and radar sites around the Strait of Hormuz after Monday’s downing of a US attack helicopter near the strategic waterway.

Iran responded with missile and drone attacks on US bases in Jordan, Kuwait and Bahrain. A US official said there was no significant damage.

Iran accused the US of striking reservoirs that supplied drinking water to 10 villages and violating international law.

“This is not collateral damage – it is a calculated war crime and a flagrant violation of human rights,” Foreign Ministry spokesperson Esmaeil Baghei said.

The US Pentagon did not immediately respond to a request for comment.

The war has killed thousands and disrupted roughly one-fifth of the world’s supply of oil and natural gas, sending prices sharply higher.

Iran has blocked traffic through the Strait of Hormuz, while the US has maintained its own blockade on Iranian ports.

The conflict has become a political headache for the White House, with public polls showing Trump’s approval ratings sinking amid voter anger over high gasoline prices.

Some Republicans have openly worried the war’s unpopularity could cost them control of Congress in November’s midterm elections.

Fighting in Lebanon continues

Fighting in a parallel war between Israel and Iran-backed Hizbollah militants in Lebanon has continued.

Israeli airstrikes in southern Lebanon killed at least 13 people on Wednesday, Lebanese security sources said, while Hizbollah claimed fresh attacks against Israeli forces.

The Israeli military said two “launches” were identified falling adjacent to an area where Israeli troops are operating in southern Lebanon, after sirens sounded in several areas of northern Israel early on Thursday.

Teheran’s demands include an end to Israel’s attacks in Lebanon, the lifting of sanctions on Iran, the release of billions of dollars in frozen assets and recognition of its control of the strait.

Trump says Iran must end its restrictions on shipping through Hormuz. He also says any peace deal must ensure Iran cannot develop a nuclear weapon. Iran denies any such ambition. REUTERS