DUBAI: The US launched several waves of strikes on Iran into Monday morning over an Iranian attack on a container ship in the Strait of Hormuz that set it ablaze and left a crew member missing over the weekend.
Iran retaliated by targeting countries across the Middle East.
Missile alert sirens sounded at dawn Monday in Bahrain, home to the US Navy's 5th Fleet. There was no immediate word on damage.
Iranian state media acknowledged the latest attacks on its soil early Monday, describing explosions in several locations with at least one person being killed.
The US military's Central Command described its forces as hitting dozens of sites in the strikes Monday, including air defence systems, radar sites, missile and drone equipment and small boats.
It also underlined the main point of contention now threatening to reignite the Iran war who controls the narrow Strait of Hormuz, through which a fifth of the world's traded oil and natural gas once passed.
“The Strait of Hormuz is a vital maritime corridor for global trade,” Central Command said. “Iran does not control it.”
“US forces are postured and prepared to ensure that freedom of navigation remains available to commercial shipping despite Iran's continued unwarranted aggression, harassment, threats and arbitrary declarations.”
Iranian attacks on Sunday stretched Bahrain, Kuwait, Qatar, Jordan and even Oman — whose territorial waters with Iran make up the strait.
Iran and the US are nearly at the midway point of the 60-day period of an interim deal, which was supposed to set up talks for a permanent end to the war.
Instead, it has devolved into a series of attacks over the strait and its future, worrying world leaders the Iran war could resume.
“A return to full-scale hostilities would have catastrophic consequences,” United Nations Secretary-General Antonio Guterres said in a statement.
The US military earlier Sunday said it hit some 140 targets, including missile and drone launch sites, ammunition dumps, communication equipment and other sites a far-heavier set of attacks than in two previous rounds of strikes in the last week.
“We bombed the hell out of them last night,” US President Donald Trump told NBC's “Meet the Press”.
Iran retaliated by attacking nations in the region hosting US military forces, while insisting it alone must control the strait and potentially charge vessels for travelling through it.
Iran's paramilitary Revolutionary Guard acknowledged in a statement early Monday it had begun a new round of strikes across the Middle East.
“The era of one-sided deals is OVER,” Mohammad Bagher Ghalibaf, the speaker of Iran's Parliament and a main negotiator, wrote. “We told you: keep your word or pay the price. Reality is knocking.”
Iran described the strait as being closed, while the US military and Trump asserted that the strait remained open.
Iran, since the war began back on Feb 28 with the killing of the late Supreme Leader Ayatollah Ali Khamenei, has used attacks on vessels in the region to intimidate shippers into not traveling through the waterway.
Iran's chokehold on the strait, however, has loosened as the US military provided support to vessels moving along a southern route hugging the coastline of Oman.
That new route has angered Iran, which launched repeated attacks on ships using it.
Iran's grip on the strait led to a global energy crisis, though oil prices have sharply dropped since wartime highs of USD 120 a barrel.
Trump suggested last week that the interim deal in the war was “over”. But mediators, including Pakistan, Qatar and Egypt, have continued efforts to reach a final agreement to end the war.
A regional official involved in mediation, speaking on condition of anonymity to discuss talks, said efforts to shore up the ceasefire continued Sunday.
Pakistan said its foreign minister spoke by phone with Iran's top diplomat and urged “de-escalation” on both sides.
Iran's new supreme leader, Ayatollah Mojtaba Khamenei, unseen since the war began, on Saturday vowed in his first statement since the funeral of his father, Ayatollah Ali Khamenei, that Iranians would avenge his killing.