Four police constables and a private security guard were killed and 20 other people injured when, on 22 January 2002, Islamic militants attacked an American cultural centre in Kolkata, India. The centre houses a library, the American embassy's public affairs office, a press section and a cultural wing. Four days after the attack, two men — Salim and Zahid — were killed in an encounter with a Delhi police team in Hazaribagh in Jharkhand. The police had come to know about the involvement of Aftab Ansari in the American Centre attack from the dying declarations of Salim and Zahid.