Manama, Dec. 16 (BNA): His Majesty King Hamad bin Isa Al Khalifa received a written message from His Royal Highness Prince Mohammed bin Salman bin Abdulaziz Al Saud, the Crown Prince and Prime Minister of the Kingdom of Saudi Arabia, inviting His Majesty to attend Expo Riyadh 2030, which will be hosted by the Kingdom of Saudi Arabia. The message was delivered to HM the King by His Excellency Naif bin Bandar Al Sudairi, Ambassador of the Kingdom of Saudi Arabia to the Kingdom of Bahrain,...