Tunisian authorities rescued 34 migrants and found two dead bodies off the North African country's southeastern coast on Friday, said the National Guard in a statement.
Another 34 people are believed to be missing, the National Guard added, after survivors told them that there were 70 on board before their vessel capsized.
The boat which sailed from Libya coast was carrying 70 people, and 34 people were rescued off the southern town of Zarzis.
This week, Tunisian coast guard also recovered five bodies of migrants.
With improving weather in the last weeks, the flow of African migrants, including Tunisians, in boats heading for Italy has increased.