An Iran-linked hacking group claimed responsibility Wednesday for a cyberattack on US medical technology giant Stryker, saying it had extracted 50 terabytes of data in retaliation for military strikes on Iran.

Iran's military vowed on Wednesday to launch strikes against US and Israeli economic interests in the region, including banks, while an Iranian news agency listed tech giants as possible "future targets".

Oil soared above $100 and stocks sank Thursday as Iran's fresh attempts to hit supplies in the Middle East and threats to bring down the global economy overshadowed a record release of strategic crude by the International Energy Agency.

Foreign military strikes on Iran have intensified debate over the country’s political stability, exposing deep divisions within society about the regime and the cost of war.

One of the world's largest refineries in the UAE was shut as a "precaution" after a drone attack nearby, a source said, while Saudi giant Aramco warned of the war's devastating impact on oil.

Saudi Arabia said Wednesday it had intercepted a wave of seven drones heading towards a strategic oil field, as Iran renewed fire on its Gulf neighbours and their energy infrastructure.

Iran's new supreme leader Mojtaba Khamenei is "safe and sound" despite reports of an injury during the war with Israel and the United States, said the son of the Iranian president on Wednesday.

Israeli strikes on oil storage facilities near Tehran over the weekend temporarily turned the Iranian capital into a fire-lit “hellscape,” with long-term environmental and health damage expected.

Iran has begun laying mines in the Strait of Hormuz, the world’s most important energy chokepoint that carries about one-fifth of all crude oil, according to two people familiar with US intelligence reporting on the issue.

Qatari authorities have arrested more than 300 people for sharing images and what they described as "misleading information" during days of attacks by Iran, the interior ministry said on Monday.

The US will control almost a third of the world’s oil and make record profits if it succeeds in toppling the Iranian government, hawkish Republican Senator Lindsey Graham told Fox News on Sunday.

About 10 vessels in or near the Strait of Hormuz have come under attack since Iran blocked the strategic waterway in retaliation for US-Israeli strikes, data analysis groups report.