At least two people drowned on Tuesday when a boat carrying migrants sank off the coast of Tunisia, a coastguard official said.
The boat sank six miles (10km) from the coastline near the city of Sfax, Houssem Jebabli told Reuters, adding that the rescue operation continued.
Fourteen people are missing.
There have been two migrant shipping disasters off the Tunisian coast this year, with 86 African migrants drowned after their boat capsized having set off for Europe from Libya in July.
Another boat taking migrants to Europe from Libya capsized in June, drowning at least 65 people.
All the migrants traveling on the boat on Tuesday were Tunisians, Jebabli said.