The bodies of 26 women, thought to be Nigerian, have been recovered from the sea off Italy.
The women, the youngest of whom is thought to have been just 14, were trying to reach Europe from Libya.
It is unclear why so many women died, as there were men on board the ship as well.
There are suspicions that they may have been sexually abused and murdered as they attempted the dangerous Mediterranean crossing.
Italian prosecutors are now investigating the exact circumstances, and are questioning five migrants in the southern port of Salerno.