Charlie Hebdo's decision to release the explicit cartoons sparked angry condemnation in the Muslim world, where violence over a crudely made anti-Islam film has resulted in dozens of deaths in recent days.
The French government said it would close many embassies, consulates, cultural centres and international schools on Friday due to fears they could be targeted in demonstrations after weekly Muslim prayers.
French schools in Tunisia, home to 30,000 French have already been closed until Monday as a "preventive measure", while schools and cultural centres in Egypt will close on Thursday.
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