France's president has pledged to punish rioters over violent protests across the nation. Key points and original sources are listed below.

• France's president has pledged to punish rioters over violent protests across the nation.S1S2

• How much damage has the unrest in France caused to a protest movement rooted in genuine grievances but hijacked by rioters, violence and vandalism? Is it a gift to Marine Le Pen, the far-right leader and presidential frontrunner? Or is it a spectre of trouble...S3