Hello and welcome to News Hour live from the BBC World Service in London.

I'm Rebecca Kessby.

For days the streets of the Bangladeshi capital Dhaka have been the scene of student protest and

violent clashes with riot police. Demonstrators in other cities have also turned violence.

Six people at least have been killed. Security forces have fired

tear gas and rubber bullets to disperse the crowds and all schools and colleges

nationwide have been closed indefinitely while the unrest lasts.

What you can hear there is students shouting,

we're all Raza-cars or collaborators,

and we'll get into why.

In a moment, first though one of the students killed in the clashes was Abu Sayed,

his mother and sister had this to say to reporters.

Sheikhissina is responsible for my son's death.

I want her to be tried. I want her to be punished.

So why did they kill him? He was unarmed. He just had a flag of Bangladesh in one hand. They got him alone, they could have broken his

arms or legs. Why did they kill him? I want justice for him. I want the killer to be hanged.

And Sheikh Hasina is of course the Prime Minister,

while the students are protesting the reinstatement of a highly controversial quota system

that reserves a percentage of jobs in the civil service and public sector

for the relatives of people designated as war heroes

those who fought for independence against Pakistan in 1971. There are also quotas for ethnic minorities and the disabled,

but it's the one-third of all government jobs reserved for the children and grandchildren of these freedom fighters that protesters say is unfair.

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