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For days, the streets of the Bangladeshi capital, Dhaka, have been the scene of student protest and violent clashes with riot police. Demonstrations in other cities have also turned violent, six people have been killed and hundreds were injured. All schools and colleges nationwide have been closed indefinitely while the unrest lasts.

The students are protesting the reinstatement of a highly controversial quota system that reserves a percentage of civil service and public sector jobs for the relatives of people designated as 'war heroes', those who fought for independence against Pakistan in 1971.

Shahidul Alam Drik, a Dhaka based journalist, explains the protest against the government of PM Hasina.