Thousands of people have been queueing up in France to buy the new edition of satirical magazine Charlie Hebdo.
It features a cartoon depicting the Prophet Muhammad on the front cover, and three million copies have been printed to satisfy demand.
A week ago Islamist gunmen killed eight journalists at the magazine's offices in Paris.
Proceeds of the sales will go to the victims' families.
Newspaper Liberation has been housing Charlie Hebdo staff since the attacks - Liberation's editor Laurent Joffrin says their latest cover is appropriate.
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British Prime Minister David Cameron says media should be free to offend.
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British Deputy Prime Minister Nick Clegg says it's a day to show solidarity.
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