The video below from X user @githii shows a startling sight: what appears to be a foundation drill rig punched right through the crown of a subway tunnel in Istanbul, Turkey several days ago. Reportedly this occurred on the Mecidiyeköy-Istanbul Airport metro line, but the incident was detected almost immediately and trains were halted and electricity was shut off as a precaution so no injuries were reported. More info can be found on the LinkedIn post below, but I have no other details about the incident.
This happened earlier today. I'll be sharing more details and context shortly, unless someone in my follower community can provide the information sooner. pic.twitter.com/Q1OFnOW4rb— Githii (@githii) January 20, 2024