People attend national flag raising ceremony at Golden Bauhinia Square in Hong Kong(1/7)

People attend a national flag raising ceremony at the Golden Bauhinia Square in Hong Kong, south China, Sept. 8, 2019. (Xinhua/Li Gang)

A national flag raising ceremony is held at the Golden Bauhinia Square in Hong Kong, south China, Sept. 8, 2019. (Xinhua/Li Gang)

People attend a national flag raising ceremony at the Golden Bauhinia Square in Hong Kong, south China, on Sept. 8, 2019. (Xinhua/Li Gang)

People wait to attend a national flag raising ceremony at the Golden Bauhinia Square in Hong Kong, south China, Sept. 8, 2019. (Xinhua/Li Gang)

People pose for photos after attending a national flag raising ceremony at the Golden Bauhinia Square in Hong Kong, south China, Sept. 8, 2019. (Xinhua/Li Gang)

People attend a national flag raising ceremony at the Golden Bauhinia Square in Hong Kong, south China, Sept. 8, 2019. (Xinhua/Li Gang)

People attend a national flag raising ceremony at the Golden Bauhinia Square in Hong Kong, south China, Sept. 8, 2019. (Xinhua/Li Gang)