A significant anniversary is being commemorated. The US is marking 25 years since a major terrorist attack that killed nearly 3,000 people.

The attack involved hijacking commercial airplanes, resulting in crashes at several locations. A field in Pennsylvania was the site of one crash, while another targeted a government building in Virginia.

Ceremonies are being held to mark this occasion, with events taking place throughout the day. Further information about these events can be found through other sources.