Around 100 people are believed to have drowned in the Mediterranean Sea on Thursday, after their dinghy capsized off the Libyan coast.
Their smuggler abandoned them in high seas without a motor.
27 survivors had been rescued by an oil tanker and were later transferred to the Bourbon Argos, a boat of the Médecins Sans Frontières charity (MSF).
Seven bodies were recovered.
A survivor said there were 130 were on board the vessel. Survivors said most of the people tried to stay afloat but most drowned.
On Tuesday another dinghy capsized, drowning almost 100 passengers before a merchant ship rushed to their aid. 15 survivors were taken to the Sicilian port of Catania.
The same evening 298 people were rescued in three operations. Casualties are estimated to little over 4,700 in less than a year according to UNHCR. That is a record.
Migration via Libya is unabated, although the flow from Turkey via Greece has fallen significantly. Over 167,000 have made the perilous journey from North Africa to Italy this year according to the Guardian.