Kolkata, June 24 -- Trinamool Congress (TMC) MP Kalyan Banerjee on Wednesday termed the collapse of an under-construction godown shed in Kolkata's Taratala area a "very sad incident" and demanded a neutral investigation into the approval and construction of the structure, saying those responsible should face action if irregularities are found.

"What happened at Taratala is a very sad incident. However, we must look into who the people behind the approval of this plan are. If it is true that the structural report is found to be faulty, then the police must apprehend those responsible. First, show us absolute neutrality in the investigation," Banerjee told reporters.

"You cannot say that you will act against one specific group and spare e...