Seven construction workers, all believed to be from West Bengal, were buried under soil as land caved in at a construction site at Electronics City in Kalamassery, north of Kochi City, on Friday afternoon.
While six of them have been pulled out so far, their condition is as yet unknown. One is suspected to have died.
Rescue work by Fire and Rescue Services along with the civil defence force, police and disaster management authority, is in full swing.