Muscat: His Majesty Sultan Haitham bin Tarik has sent a cable of greetings to President Aleksandar Vucic of the Republic of Serbia on the occasion of his country's National Day. In the cable, His Majesty the Sultan expressed his sincere sentiments and best wishes of good health and happiness to President Vucic. His Majesty also wished the people of Serbia further progress and prosperity. Source: Oman News Agency