At least seven people have been killed and dozens are feared trapped after a five-storey building collapsed in the southern Indian state of Goa, the Associated Press reports.
Authorities are trying to determine how many people were at the site - which was under construction - when it collapsed in the city of Canacona, Police Superintendent Shekhar Prabhudessai said.
Approximately 40 workers were at the site, witnesses have said.
Ambulances took at least three seriously injured workers to a hospital for treatment.
Initial investigations have shown that the bus accident that has killed at least 37 in west India occurred because the bus driver may have lost control after falling asleep.
Nandkumar Thakur, additional superintendent of police, told indian newspaper Hindustan Times:
At least 37 people have been killed and 15 people injured after a packed overnight bus fell off a bridge in western India, according to local police.
The bus was carrying passengers from Goa to Mumbai in the early hours of today when it crashed through a guard rail and off the bridge in Ratnagiri district of Maharashtra.
The cause of the accident was not immediately clear.