Keep your eye on the upper right. You'll see a large ship slowly approach and knock into a huge metal structure, which buckles and collapses. The people talking in the background don't seem very concerned about it. Perhaps it's an everyday occurrence here.
From YouTube description:
A CCTV footage shows CMA CGM Centaurus which is a container Ship Hits Terminal T1, According to this video accident took place at one of the biggest port of middle east on 06 April 2017.