Tamil Nadu Fire and Rescue Services personnel arrived and rescued the trapped passengers with the help of Chennai Metro Rail Limited (CMRL) contractors. All five were shifted to a nearby hospital for first-aid. No major injuries were reported. In the aftermath, traffic police blocked off the road and diverted the traffic.A sewer line leakage from a 2.2 m diameter underground pipe of the Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) was cited as the reason for the road cave-in. Teams from the Tamil Nadu Road Development Company (TNRDC), which maintains the OMR stretch, inspected the site and began restoration of the road in coordination with CMWSSB.Meanwhile, CMRL clarified that the incident had occurred 300 m away from a CMRL site hoarding and was not linked to metro construction happening in the area.