Fr Jacques Hamel celebrating Mass in the church of Saint-Etienne-du-Rouvray, Normandy. He was murdered there  on July 26th, 2016. Photograph: Paroisse Saint-Etienne-du-Rouvray/AFP

French authorities have undertaken a potentially explosive investigation into intelligence blunders that failed to prevent the murder of an 85-year-ol(...)

A placard with a black ribbon is brandished on Las Ramblas in Barcelona, Spain, following the recent terror attack on the street. Photograph: Pascal Guyot/AFP/Getty

Though Islamic State claimed responsibility for twin attacks that killed 15 people in Spain last week, the level of involvement by the “caliphate” is (...)

French president François Hollande and mayor of Paris Anne Hidalgo unveil a commemorative plaque in front of the Comptoir Voltaire cafe  in Paris on Sunday,  during a ceremony to mark the first anniversary of the Paris terror attacks. Photograph: Christophe Petit Tesson/AFP/Getty

France marked the first anniversary of the November 13, 2015 massacres that killed 130 people with understated ceremonies at the six places where the(...)

Ibrahim el-Bakraoui: he and his brother blew themselves up in separate attacks in Brussels. Photograph: Haberturk /AFP/Getty

The origins of Islamic State, the network behind both the Brussels bombings and November’s onslaught in Paris, stretch back some three years to before(...)