Ammonia gas leaks after cold storage building collapses in Prayagraj, 4 killed

Four people were killed and 12 were injured after a cold storage building collapsed in Prayagraj on Monday. The collapse of the building triggered ammonia gas leak, officials said. Deputy Commissioner of Police (Ganga Nagar) Kuldeep Gunawat said structure suddenly caved in, trapping workers under the debris. The police have taken cold storage manager and some staff members into custody.