Twenty-seven migrants, including women and children, died after two boats capsized off central Tunisia, with 83 people rescued, a civil defence official told AFP on Thursday.
The rescued and dead passengers, who were found off the Kerkennah Islands, aimed to reach Europe and were all from sub-Saharan African countries, said Zied Sdiri, head of civil defence in the nearby city of Sfax.
Tunisia, as well as neighbouring Libya, is a key departure point for irregular migrants seeking to reach Europe for a better life.
Italy's island of Lampedusa is only 150 kilometres (90 miles) from Tunisia.