Iran launched a heavy barrage of missiles at Israeli targets early Monday, hitting Tel Aviv and Haifa and igniting large-scale fires and destruction, in what regional sources described as the most intense assault to date.

Iran launched a new attack on Israel early on Monday, striking Tel Aviv and the northern port city of Haifa in a fourth day of open warfare. Three people were killed in the country’s centre, while dozens more were injured in the overnight strikes, Israeli media said.