The fragile ceasefire between United States and Iran effectively collapsed after both countries launched fresh military strikes on Thursday, expanding the conflict across the Gulf and raising fears of a wider regional war.

Fresh wave of tit-for-tat attacks follows Donald Trump’s declaration that an interim agreement to end the war is ‘over’.

The US military targeted multiple Iranian cities, including Iranshahr and Bandar Abbas, as the ceasefire agreement signed in June shows signs of breaking down.