Iran threatens to close Strait of Hormuz after Donald Trump’s 48-hour ultimatum

Iran’s parliament speaker has said Tehran would also retaliate against US and Israeli energy and wider infrastructure

Israel struck the Qasmiyeh bridge near Tyre in Lebanon on Sunday, further isolating residents from the rest of the country (Mohammad Zaatari/AP)

Iran and the allied Lebanese militant group Hezbollah stepped up attacks on Israel on Sunday as the US and Iran threatened to target critical infrastructure in the war in the Middle East, now in its fourth week.

Iran said the Strait of Hormuz, crucial to oil and other exports, would be “completely closed” immediately if America follows up on a threat from US President Donald Trump to attack its power plants.