On November 20, 2017, Mohamed Khaled Mustafa Alqamhawy, a 29-year-old mechanical engineer, was at work when members of the Police and State Security Forces, some wearing uniforms while others wearing plainclothes and carrying weapons, entered the factory and searched the place. They arrested Alqamhawy without any warrant and without explaining the reasons and took him to an unknown location. Alqamhawy remains missing since.