Kolkata: A CCTV footage that was aired on local television portrayed the horror that engulfed Kolkata as well as the entire nation.
The incident that happened on Wednesday afternoon killed 14 people and left almost 78 injured. People and vehicles are still trapped under the debris.
In the CCTV footage a dark shadow is seen descending on the cars and taxis driving under the Vivekananda Road flyover in central Kolkata's Burrabazar.
"Suddenly the bridge was collapsing and we watched it come down in about five to six seconds. Everything was shaking, we thought it was an earthquake," eye witnesses said.
Prime Minister Narendra Modi who is in US expressed shock and sadness over the loss of lives in the flyover collapse in Kolkata and instructed all possible central help in rescue and relief operations.
"Shocked & saddened by collapse of under-construction flyover in Kolkata. Took stock of the situation & rescue operations," Modi, who is in the US on an official visit, tweeted. "My thoughts are with the families of those who lost their lives in Kolkata. May the injured recover at the earliest," he added in another tweet.
My thoughts are with the families of those who lost their lives in Kolkata. May the injured recover at the earliest.
— Narendra Modi (@narendramodi) March 31, 2016
Sources said the Prime Minister is in touch with officials in Delhi and has instructed all possible assistance to be extended by Army and NDRF in rescue and relief operations.