Prison officers block jails in France after blade attack by convict

Penitentiary staff push back against anti-riot police as they block the entrance of the Fresnes prison during a demonstration in Fresnes, outside Paris, Tuesday Jan. 16, 2018. Saff blocked 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]