![](http://www.ecns.cn/hd/2022/05/26/3235b3b53d4c4a87996df12f410e775a.jpg)
U.S. national flag flies at half-staff at the City Hall of Millbrae, California, after a gunman in Texas killed at least 19 children and two adults at Robb Elementary School, U.S., May 25, 2022. (Photo: China News Service/Liu Guanguan)
Flags throughout the U.S. flew at half-staff to mark this horrific event and remember victims.
![](http://www.ecns.cn/hd/2022/05/26/f8a8688a42ef4781a5b306547de96366.jpg)
U.S. national flag flies at half-staff outside the City Hall of Millbrae, California, after a gunman in Texas killed at least 19 children and two adults at Robb Elementary School, U.S., May 25, 2022. (Photo: China News Service/Liu Guanguan)
![](http://www.ecns.cn/hd/2022/05/26/a1e2813af5744d3991df9b1ea364562c.jpg)
U.S. national flag flies at half-staff at the Millbrae Museum, California, after a gunman in Texas killed at least 19 children and two adults at Robb Elementary School, U.S., May 25, 2022. (Photo: China News Service/Liu Guanguan)