Grief, alarm and resolve spread across Europe and the globe one day after coordinated terror attacks killed more than 120 people in Paris.
Parisians expressed shock, disgust and defiance in equal measure. Some areas of the city were quiet, but hundreds queued outside a hospital near the Bataclan concert hall, scene of the worst violence, to donate blood. As a shrine of flowers expanded along the sidewalk, a lone guitarist sang John Lennon's peace ballad, "Imagine."
Here are images from Paris and around the world in the wake of the attacks.