Witness letter of the incident occur in Tinguilinta workshop in which case an electrical cable were cut:

First of all, when Balde engineer arrive with his civil team and inform me what they want to do as job immediately together we call by phone HSE department Bah Amadou Oury to choice a suitable place without affecting the new traffic management plan.
After that Oury with Issam Younes discussed and direct Balde behind the former laboratory near the fence where this incident occurs.
When this civil team finishes their job, we wanted to use our washing Cars and equipment we found out the machine was not working because there was not power.
Then I call an industry electrician named Alexendre Camara who found exactly there was no power the cable which was supplying that machine was cut, he went to disconnect the cable form the circuit breaker.