Iran says it has duty to punish Israel over killing of Hamas leader in Tehran

Crisis meeting of Arab states this week may set agenda for retaliation as countries urge Iran to show restraint

Iran has called in foreign ambassadors based in Tehran to warn of the country's moral duty to punish Israel for what it sees as its adventurism" and law-breaking in assassinating Ismail Haniyeh, the Hamas leader, a week ago in the Iranian capital.

Iran has also secured an emergency meeting of the Organisation of Islamic Cooperation (OIC) on Wednesday where it will try to press Arab states to back its right to take reprisal actions against Israel.