Iran fired a new wave of missile attacks on Israel early Monday, triggering air raid sirens across the country as emergency services reported at least three killed and dozens more wounded in the fourth day of open warfare between the regional foes that showed no sign of slowing.

Iranian media report new Israeli attacks on the west of the country on Monday, after Iranian strikes broke through Israel's iron Dome defences overnight.

Follow the latest news after Israel launched strikes at Iran, a dramatic escalation in long-running tensions between the two countries.