Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud has sent a cable of congratulations to Grand Duke Henri of Luxembourg, on the occasion of his country's national day. On behalf of the people and the Government of the Kingdom of Saudi Arabia, the King expressed his most sincere congratulations and best wishes of permanent health and happiness to His Royal Highness and further progress and prosperity to the Government and the people of Luxembourg.