Nine suspected people smugglers accused of piloting the fishing trawler that sank off the coast of Greece last week are expected to appear in a Greek court on Monday, as authorities in Athens face further criticism of their handling of the disaster.
Between 400 and 750 people are thought to have been onboard the vessel, which sank in one of the deepest parts of the Mediterranean Sea off the coast of Pylos on 14 June.
The UN refugee agency, UNHCR, said the disaster could be the second deadliest refugee and migrant shipwreck ever recorded, with more than 500 people, including at least 100 children, believed missing.
Greek authorities said that 78 dead and 104 survivors - mostly from Syria, Afghanistan, Egypt and Pakistan - were brought ashore.
But survivors of the shipwreck have accused the Greek coastguard of ignoring their pleas for help, leading to the loss of many more lives.