Oil rig, weighing equal to 300 747 planes, sinks before it even starts drilling in Africa

A Borr Drilling oil rig, roughly weighing equal to 300 fully-loaded Boeing 747 planes, sank off the shore of Gabon, leading to the disappearance of five people. One of the rig's legs unexpectedly penetrated the seabed, destabilising the rig and eventually causing it to sink. The rig, which hadn't even begun drilling activities yet, was carrying 115 people in total.