17 killed as under-construction bridge collapses in Kolkata, India. Seventeen people are reported killed and at least 78 injured, while 150 are believed trapped, after an under-construction flyover collapsed in a densely-populated area of Kolkata, India, causing chaos. Eyewitnesses told the Indian Express they heard a loud blast and a crashing sound. They also said they saw a cloud of smoke rising from the scene. Paramedics are working to free people from a minibus that was crushed in the collapse, a local witness told Reuters. The flyover collapsed on to the traffic moving along the street, police said. “Cement and concrete were poured in yesterday only, it suddenly collapsed today,” a local witness told India Today. Those who happened to be near the scene were trying to pass bottles of water to people trapped in the rubble.