New York: On the The 15th anniversary of the horrific 9/11 attacks, Indian actors Priyanka Chopra and Anupam Kher have paid a tribute to the victims. Priyanka, currently busy shooting for her American TV series "Quantico" in New York, shared a photograph of the 9/11 memorial and captioned the image: "The 9/11 memorial on 9/11. It's powerful. Stop the violence." Anupam on Twitter shared: "Paid tribute to the victims of 9/11 at World Trade Centre, New York." Families of the nearly 3,000 people killed in the terror attacks of September 11, 2001, gathered at the World Trade Center site to remember those they lost. The terror attacks carried out by the Al Qaeda killed nearly 3,000 people and left over 6,000 injured in New York and Washington D.C. The twin towers of the World Trade Centre in New York were destroyed in the attack.