His Royal Highness Prince Mohammed bin Salman bin Abdulaziz Al Saud, Crown Prince and Prime Minister, has sent a cable of congratulations to President Rumen Radev of the Republic of Bulgaria on the occasion of his country's National Day. His Royal Highness, the Crown Prince, expressed his best congratulations and sincere wishes of good health and happiness to His Excellency and expressed his best wishes for further progress and prosperity to the government and people of the friendly Republic of Bulgaria.