The September 11th attacks are one of those days that those left behind will always remember where they were when they found out.

I was sitting in class when I saw something wasn’t right. And you knew it was something very, very wrong by the looks on teachers’ faces. People who just didn’t know what to do in the wake of something so utterly… horrific.

“Commemorations have been held across America to mark 18 years since the 9/11 attack.

“A moment silence took place at various locations, including the site of the attack, ‘Ground Zero’, in New York and at the Pentagon, Virginia.

“Nearly 3,000 people were killed that day and thousands more were injured.”

Read more at BBC