Video shows hundreds of corpses below deck in capsized shipwreck
A video of the corpse-filled interior of the sunken fishing boat that capsized off Libya last month appears to confirm survivor accounts that some 800 smuggled migrants died in the shipwreck.
Only 28 survivors, including one suspected smuggler and his alleged assistant, and 24 bodies were found.
Reports claimed many of those who drowned were locked in the ship's hold.
The suspects are being investigated for manslaughter, causing the shipwreck and aiding and abetting illegal immigration.
"The dimensions of the fishing boat, documented in the inspection of the ship, the imprecise but very high number of corpses able to be seen inside the wreck or right nearby, the convergent statements by survivors, indicate there were quite a few hundred persons, perhaps 800," the prosecutors' office said in a statement.
The video of the undersea wreck's inspection will remain sealed to "protect the dignity of the deceased".
"The fishing boat was crammed in every corner, including interior, closed spaces, with migrants," they said.
Prosecutors said the last of the survivors from last month's shipwreck to give testimony was a man from Bangladesh who was hospitalised for health problems he had before the capsizing.
Names and nationalities of the dead appear likely never to be known.
"It is not possible to establish the precise number of women and children, and not even their countries of origin," the prosecutors said.
They noted a similar fishing boat rescued by the navy last year had more than 870 migrants aboard.
In the hours after the capsizing, some survivors said smugglers had locked hundreds of migrants in the hold. But prosecutors said Friday that although the doors were closed, they weren't locked.
Investigators determined at least one door was open and secured to the bulkhead.
Two survivors later testified they were able to emerge from the hold and move to the deck. As a result, prosecutors dropped an initial accusation of kidnapping against the suspects.
Survivors recounted how the smugglers tried to "embark even more people even though the fishing boat couldn't hold any more", prosecutors said.
Investigators concluded that the boat capsized in part because it was overcrowded and because the crew caused the vessel to collide repeatedly with the container ship trying to help.
The shipwreck galvanised the European Union to devise a strategy to combat the smuggling, which has brought tens of thousands of migrants to Italy after sea rescues this year alone.
Hundreds of the 2,200 migrants who were rescued in 11 separate operations coordinated by the Italian coast guard reached land yesterday.