NEW YORK (CBSNewYork) — Monday marks the 25-year anniversary of the first attack on the World Trade Center.

A ceremony to honor the six people killed will be held at the September 11th Memorial and Museum at noon.

It will include a moment of silence at 12:18 p.m., the time when a truck bomb was detonated below the north tower.

More than a thousand people were also hurt in the 1993 attack.