An under-construction, four-storey building collapses in Rohini, northwest Delhi, on Wednesday afternoon and triggers a large-scale rescue operation. Multiple outlets report that heavy rain is ongoing or has just preceded the collapse, and emergency teams including fire and rescue personnel reach the site and cordon off the surrounding area near Sector 16, with one account placing the incident close to an MCD school. Early in the response, rescuers pull people out of the rubble. Reports differ on the number of victims recovered: one outlet says two people are pulled out alive, while another says eight people are rescued after the collapse. At least one death is reported, with some accounts stating one person dies instantly and others reporting three deaths. Several workers are feared trapped under debris as searches continue. Preliminary investigation details in one report suggest that plumbing work may have contributed to the structural failure, though officials have not yet confirmed the cause. Police and other authorities are continuing inquiries to determine what led to the collapse.