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Forty-one migrants have died in a shipwreck off the Italian island of Lampedusa.
A group of four people who survived the disaster told rescuers that they were on a boat that had set off from Sfax in Tunisia and sank on its way to Italy, reports BBC.
The survivors, originally from the Ivory Coast and Guinea, reached Lampedusa on Wednesday.
The survivors - three men and a woman - told rescuers that they were on a boat carrying 45 people, including three children.
They said the boat, which was about 7m (20ft) long, left Sfax on Thursday last week, but sank within hours after being hit by a big wave. Only 15 people are understood to have been wearing life vests.
They added that they were rescued by a cargo ship and then transferred to an Italian coast guard vessel.
The Italian coast guard reported two shipwrecks in the area on Sunday, but it is not clear whether this vessel is one of those.
More than 1,800 people have lost their lives so far this year in the crossing from North Africa to Europe.
Bd-pratidin English/Golam Rosul
