Hà Nội implements mask mandate for indoor public places stockbot 0 170 2023.04.19 18:23 https://vietnamnews.vn/society/1521727/ha-noi-implements-mask-mandate-… + 5 https://vietnamnews.vn/rss/society.rss + 1 Those attending crowded events or visiting popular tourist destinations must adhere to the mask requirement.