The US and Iran traded fire even as Washington insisted a month-long ceasefire was still holding and President Donald Trump threatened renewed strikes if Tehran did not agree to a firm truce.

Both sides appear to be gearing up for a protracted standoff: The US won belated approval from Saudi Arabia and Kuwait to use their bases and airspace were it to attack Iran again; a leaked CIA intelligence report seen by The Washington Post, meanwhile, said Tehran still had about 70% of its pre-war missile stockpile and its economy, though reeling, was not close to collapse — a very different picture to the one painted by the White House.