UPDATE: Understood it happened not in port but during the voyage.
Containers stack on the stern of container ship UNI FLORIDA has reportedly collapsed at Jebel Ali, UAE, on Jul 30. Some containers were damaged, some probably fell overboard, it’s not yet confirmed. UNI FLORIDA arrived at Jebel Ali on Jul 27 from Saudi Arabia, and as of evening Jul 31, remained moored at Jebel Ali.
There already was containers collapse accident on board of UNI FLORIDA before, in 2007, when she was sailing under...
http://www.maritimebulletin.net/2020/07/31/containers-collapsed-on-board-of-container-ship-uae/