The Saudi Defence Ministry said two drones hit the US embassy in Riyadh. Trump says the military campaign against Iran could last longer than four weeks.

Since the US and Israel first struck Iran with bombing and missile attacks over the weekend, the speed at which this war has exploded into a regional conflict is ‘dizzying’, says the Guardian’s Oliver Holmes.

Days after the US and Israel first launched strikes against Iran, the conflict is widening by the hour, drawing in other countries across the region, sparking fears for the global economy and leaving thousands of travelers stranded.

U.S. allies and adversaries responded to the joint attacks by the U.S. and Israel on Iran with concern over the risks of a new war in the Middle East.

The three-day U.S.-Israeli war with Iran and its allies brought a new wave of displacement to war-weary Lebanon, after Israel retaliated for Hezbollah rocket attacks.

The West Asia conflict expanded to include Iran-backed militias on Monday with an attack by Hezbollah on Israel. Israel struck back against the group in Lebanon while the United States pounded targets in Iran.

Iran and allied armed groups are firing missiles at Israel, Arab states and U.S. military targets around the region