The three-storey structure collapsed around 9.45 am on Thursday, triggering a massive rescue operation. The death toll from a three-storey building collapse in Old Delhi's Hauz Qazi area has risen to three after another labourer's body was recovered. The building was under unauthorised construction,. The deceased was identified as Pankaj Sharma, a resident of Hanuman Nagar village in Bihar’s Khagaria district.