RIYADH — Custodian of the Two Holy Mosques King Salman and Crown Prince Muhammad Bin Salman have sent separate cables of congratulation to Vietnamese President Nguyen Phu Trong on his country's Independence Day. In their own names and on behalf of the government and the people of the Kingdom of Saudi Arabia, the king and the crown prince wished President Nguyen Phu Trong constant good health and happiness and the government and people of Vietnam steady progress and prosperity, Saudi Press Agency said on Tuesday.