Authorities say several people may still be trapped under the debris of the collapsed four-storey building in MustafabadFour dead, several feared trapped as building collapses in DelhiRescue workers are continuing their search under the debris of a collapsed four-storey building in Delhi's Mustafabad, based on the assumption that several people may still be trapped. Photo: NDTVRescue workers are continuing their search under the debris of a collapsed four-storey building in Delhi's Mustafabad, based on the assumption that several people may still be trapped. Photo: NDTVAt least four people have died after a four-storey building collapsed in India's capital Delhi. Fourteen others have been rescued so far following the incident in Delhi’s Mustafabad area early on Saturday morning, broadcaster NDTV reports. A local official said that several people may still be trapped under the debris of the collapsed building.