Refugee boat tragedy: Relatives seek answers about those on board

It is been nearly one week since a boat carrying about 700 refugees and migrants sank in the Mediterranean Sea, off the Greek coast.
Nine suspected people smugglers accused of playing a role in the tragedy are due to face court in the coming hours.
The Greek coastguard has been criticised for not doing enough to save lives.
The United Nations is calling for an investigation.

Al Jazeera’s Kristina Harazim reports.

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