There have been several posts on what’s happened to these cables. It’s not a conspiracy, there’s a simple explanation. There have been recent storms in the area in question and with the recent temporary closing of the Suez canal, some (big) ships have been forced to anchor off the cost. Consequently, big ships rough sea’s and accidents happen.
There’s been an internal memo giving all the facts, but that’s the gist of the situation. Most of the carriers have bought extra bandwidth and re-routed traffic to minimise the impact. So it isn’t area 51 at sea, sorry.