French police have been criticised for detaining an eight-year-old who claimed to support the men who attacked the satirical weekly Charlie Hebdo.

A French man wanted in connection with deadly terrorist attacks in Paris has been extradited from Bulgaria to France, where he is facing charges of links to terrorism, judicial officials say.

French anti-terror prosecutors are seeking to charge four men in connection with the attacks in Paris that left 20 people dead.

Four men have appeared in a French court, the first to face charges in the Paris terror attacks that left 20 people dead, including three gunmen.

Bulgarian authorities say they have arrested a French citizen believed to have links to one of the brothers suspected of the terror attack against the Charlie Hebdo magazine.