The Secretary-General of the Ministry of Foreign Affairs HE Dr Ahmed bin Hassan al Hammadi held on Tuesday a farewell ceremony in honour of Ambassador of the Federative Republic of Brazil to Qatar Roberto Abdalla, on the occasion of the end of his tenure in the State of Qatar. A number of Excellencies heads of diplomatic missions and bureaus accredited to the country attended the ceremony at the Diplomatic Club, along with foreign ministry department directors. (QNA)