University student Moussa Diop, who lives here, told me he had three male cousins and a teenage nephew on the boat that left in secret last month. His sister had no idea her son was on the boat - and had been in a desperate state since his disappearance last month.

The first the family heard about their doomed voyage was when one of the cousins sent Mr Diop a WhatsApp video from Sal on Wednesday to tell them that three of them had made it and were in hospital - but one of the young cousins had died.

Mr Diop says sorrow for lost relatives and relief about those who have survived has boiled over into frustration.

After news of the tragedy spread on Wednesday, people in the town began damaging cars and boats and they also set fire to the house of the mayor.

Young people blame a lack of opportunities and want the authorities to do more to help them.