Artists around the world respond to the Charlie Hebdo shooting as #JeSuisCharlie sweeps Twitter.
Artists around the world have been responding to the Charlie Hebdo shooting, while social media users changed their avatars and tweeted out poignant images in solidarity with victims of the massacre.
At least 12 people were killed and five seriously injured after masked men stormed the offices of Paris-based satirical magazine Charlie Hebdo at around midday on Wednesday.
The incident is France's deadliest terror attack in at least two decades.
French president François Hollande said the shooting was "undoubtedly" a terrorist attack.