Prison officers block jails in France after blade attack by convict

Riot police officers stand guard in front of the Fresnes prison during a demonstration of the penitentiary staff, in Fresnes, outside Paris, Monday Jan.15, 2018. Penitentiary staff block several prisons in France after an attack by an inmate against several people at a high-security prison in northern France. [Photo AP/Thibault Camus]