National Disaster Response Force (NDRF) and Indian army people recover the body of a person after a bridge under construction collapsed in Calcutta, India, 31 March 2016. [Photo/IC]

Local TV channels showed footage of rescuers trying with their bare hands to pull out those still trapped under chunks of concrete and metal, and blood stained bodies being retrieved from under the debris as well as cars buried under the collapsed bridge being pulled out by cranes.