18 years since 9/11: Remembering what happened on September 11

New Delhi, Sep 11: Today marks 18 years since the fateful events of 9/11. Two planes crashed into World Trade Centre, leaving nearly 3,000 dead. The grief, pain and impact on the victim's family were almost impossible to fathom and have continued to destroy lives and families.

The lesson from 9/11 attacks is clear that the national and global security agencies cannot lower their guard at any point of time in their fight against terrorism. On this day, let's have a quick look at the facts on what happened on September 11.