American flags in New York flew at half-staff on Sunday to mark 21 years since the 9/11 attacks.
Meanwhile, President Joe Biden issued a message from the Pentagon, promising to "keep the memory of all those precious lives that were stolen from us."
21 years have passed since the 9/11 attacks; thus they commemorated in different cities of the USA.
2022-09-11T23:55:59.636Z
American flags in New York flew at half-staff on Sunday to mark 21 years since the 9/11 attacks. While | World | CNN