Nineteen police officers were injured and some 250 people arrested after a protest against Pre sident Francois Hollande's leadership degenerated into violence, police in Paris said today.
The numbers of casualties and detentions is high compared with other protests in recent weeks expressing discontent with Mr Hollande, who is particularly unpopular for his handling of the economy.
Police say some 17,000 people took part in yesterday's largely peaceful protest, while organisers put the number several times higher.
Some 50 associations were involved, including conservative and far-right groups. Also present were supporters of provocateur-comic Dieudonne, who has been repeatedly convicted of anti-Semitism and racism.