These images are taken from the beach at Ramlet al-Baeda. You can very easily note the presence of a large black spot in the sea. What is the source of this spot? Clearly we note the presence of drain poured into the sea, and it spreads and expands those black spots .
As the pictures show, citizens were about to swim into the sea, or in other words, inside the drain, but they were not aware of it, because eyes cannot catch what the camera lens captures from a distance.