At first, they pretended to be police officers.
They did not have an armband but the ax they displayed, not really a law enforcement weapon, quickly convinced the employees being held up to obey them.
Five criminals attacked a business on rue Newton, located in an artisanal area in Cesson, during the night from Wednesday to Thursday.
They seized several tonnes of offcuts of large copper cables.
The damage is estimated between 25,000 and 30,000 euros.
Arriving in two vehicles, including a truck, the robbers began their mischief shortly before midnight, entering the company using the access code to the site portal which was in their possession.
They took the workers' phones
They then forced the door of the building to enter and robbed employees who were sleeping there, using an axe, knives and a handgun.
They also had a soda.
They then have their victims' cell phones handed to them, before forcing them to help them load their loot into the bed of their truck.
Around 12:20 a.m., the criminals fled.
The robbers acted without committing any particular violence.
They just tear gassed their victims as they tried to chase them to get their stolen phones back.
There have currently been no arrests in this case, which has been entrusted to the interdepartmental judicial police service.