Updated On: 04 May, 2021 01:44 PM IST | Mexico City | IANS
Several carriages of a line 12 subway train plunged metres deep and collided with each other, videos circulating on social media showed.

Rescue workers gathered at the accident site | Pic/AFP
At least 20 people were killed after a bridge on an elevated section of the Mexico City underground system partially collapsed as a train was passing over it, Mayor Claudia Sheinbaum said.
At least 49 people were injured, some of them seriously, Sheinbaum told journalists at the scene of the accident on Monday night.