At least 15 people were killed after a housing society wall collapsed following heavy rains. The wall collapsed on a slum in Kondhwa area where labourers were sleeping. Most of the victims were labourers from Bihar and Orissa. Pune district collector has ordered an inquiry into the incident. “The workers were living in a camp of an under construction site,” said Pune district collector Naval Kishore Ram.“Wall collapsed due to heavy rains. Prima facie, builder seems to be at fault as he set labour camp right adjacent to the wall,” he added.