Russian leader Vladimir Putin told Iran's president over the phone on Friday that Moscow condemned Israeli actions against Tehran, and in a separate telephone conversation told Israel's prime minister that only diplomacy could resolve issues around Iran's nuclear programme.

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