The Iranian Revolutionary Guard announced the method of the operation that led to the assassination of the head of the Hamas political bureau, Ismail Haniyeh, in the capital, Tehran, according to "Russia Today". Statement No. 3 issued by the Revolutionary Guards stated: 'The assassination operation was planned and carried out by the Zionist entity and with the support of the criminal American administration.' It added: 'According to the investigations, this terrorist operation took place with a short-range missile with a warhead weighing approximately 7 kilograms from outside the boundaries of the guest (Haniyeh) residence building and led to a severe explosion.' The statement concluded: 'We affirm that the Zionist entity will receive painful and difficult punishment at the appropriate time and place.' Source: National News Agency - Lebanon