New Delhi ( CNN ) -- At least 46 people have died -- including 17 children -- and dozens have been injured after an illegal building still under construction collapsed in western India , police said Friday . The building , in Thane , about 10 kilometers northeast of central Mumbai , caved in on Thursday evening , said Digambar Jangale , a local police official . Seventy people have been injured , according to another police official , Vinod Parab . Rescuers are still searching through the wreckage , Jangale said , and five children are among those pulled alive from the rubble so far Friday . Manoj Gohad , a senior local official , told CNN sister network IBN that people were illegally occupying the first four floors of the building even though it had n't been completed or authorized . Jangale said the eighth floor was still under construction when the building gave way . The collapse might have been the result of poor construction , he said , but authorities are still investigating what caused it . Police have registered a case of culpable homicide against the builder of the structure , who is yet to be traced , according to IBN . At least 19 dead in Tanzania building collapse . CNN 's Jethro Mullen reported and wrote from Hong Kong , and Harmeet Shah Singh reported from New Delhi .
NEW : The death toll rises to 46 , according to police . Rescuers are still searching through the rubble , police say . A man is carried away from a collapsed building in Amatrice on Monday. Police have registered a homicide case against the builder , a CNN affiliate reports .