Security forces have arrested some 200 students marking the first anniversary of massive protests against tuition increases in Canada's eastern province of Quebec.
Police spokesman Jean-Bruno Latour said on Saturday that the protesters had been detained during a protest rally in downtown Montreal late on Friday.
The demonstrators demanded forming a commission to investigate the performance of police forces during last year's unrest that involved thousands of people against tuition hikes in the French-speaking province.
Some of the demonstrations turned violent, with many students detained during clashes with police.
The demonstrators eventually succeeded in persuading the Quebec government to cancel the tuition increases.