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At least 14 died when a boat caught fire in south , a local mayor and a health official told AFP on Tuesday.

"We have been able to recover 14 bodies," David Diatta, the mayor of the town of Kafountine in Casamance, said after the fire on Monday.

"The toll will likely rise," he added.

The town's chief nurse, Bourama Faboure, said that 21 people had been injured, including four who suffered second-degree burns.

The dugout had been carrying about 140 people, nearly 90 of whom survived and were able to be identified.

"There were Guineans, Nigerians, Gambians and Senegalese," Diatta said.

But the search continued for those still missing, he said.

"The survivors are saying that the fire was started by someone smoking a cigarette where the fuel was kept," the mayor said.

Police have launched an investigation into the incident.

Many migrants set off from Senegal to try to reach the Spanish Canary Islands as a gateway into Europe.