Bahrain, Qatar and the United Arab Emirates all sounded the alarm early in the morning as missiles streaked across the sky and explosions rang out.

Iran targets its Gulf neighbours in third round of tit-for-tat attacks with US in a week.

The U.S. and Iran exchanged fire for the third weekend in a row, with strikes stretching into Monday as Iran responded to U.S. attacks by targeting U.S. allies in the region.

President Donald Trump declared a ceasefire with Iran to be "over" after repeated Iranian breaches this weekend, leading to a huge wave of strikes by the U.S.

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 has targeted US naval supply lines as part of a wave of strikes across the Gulf, as Tehran attempts to assert control of the Strait of Hormuz.

U.S. and Iranian forces exchanged heavy missile and drone assaults, with Tehran targeting U.S. assets in six countries and saying it had again closed the Strait of Hormuz.

Oil prices jumped and world shares were mixed on Monday after the U.S. carried out airstrikes and Iran retaliated. In early European trading, Germany's DAX added 0.2% to 25,105.55 and the CAC 40 in Paris edged 0.

The president has repeatedly said he's the No. 1 target of the Iranian regime, with protesters holding banners calling for his death at Ayatollah Ali Khamenei's funeral this week.