Three days on and more questions than answers are emerging on how a rusty trawler carrying "hundreds" of people sank off the Greek coast in the deepest part of the Mediterranean Sea.
On Friday, the United Nations called for an urgent investigation into the incident as hundreds were feared missing - including 100 children onboard the vessel.
Greek officials said it recovered the dead bodies of 78 men, women and children in the immediate aftermath of the shipwreck on Wednesday. Since then, no bodies have been found.
Around 104 survivors - all men and primarily Syrian, Egyptian and Pakistani - were rescued after the incident, though as many as 500 more people are missing and feared dead.
But as Greek officials wrap up its search operation, many are asking if the Hellenic coastguard and its European partners could have done more to rescue people onboard the ship.
