From the BBC:

Cover of Charlie Hebdo
"Charlie Hebdo must be veiled!" says the cover of the magazine

French interior minister and presidential candidate Nicolas Sarkozy has defended a weekly sued for printing cartoons of the Prophet Muhammad.

Two French Muslim groups are suing Charlie Hebdo magazine for defamation over the cartoons, printed a year ago.

Mr Sarkozy's letter of support was read out in the Paris court hearing the case and prompted France's top Muslim body to call an urgent meeting in response.

Editor Philippe Val told the court the cartoons critiqued "ideas, not men".

The newspaper Liberation republished the cartoons on Wednesday in solidarity with the magazine.

The two-day trial is being seen as a test of the boundaries of free speech and religious sensitivities in France.