NEW : 300 arrested in student protests . Tens of thousands of students protest in Quebec . The students in Quebec province are unhappy about planned tuition fees . Tuesday 's protests follow police clashes in which 300 were arrested .
NEW : Six arrested in evening protests . Tens of thousands of students protest in Montreal . The students in Quebec province are unhappy about planned tuition hikes . Tuesday 's protests follow weekend clashes in which 300 were arrested .