There was a system of towers or pylons in Ganwar, Somalia, during the 1991 Ganwar incident. Only one is initially seen, but later it is revealed there are five towers in total, forming the points of a pentagon. In the flashback in "137 Sekunden", a large tower in the Ganwar district of Somalia appeared to be emitting smoke, particles, radiation, or some substance that appears to cause an atmospheric disturbance during the Ganwar incident. While investigating the GBO, the FBI initially finds the pentagon of towers in satellite images of Ganwar taken in 1991. ("Gimme Some Truth")