The goal is to break Israel's blockade and establish a humanitarian corridor to Gaza.
We are also trying to send a message to the people of Gaza that the world has not forgotten you, says Swedish climate activist Greta Thunberg in the Tunisian port city of Bizerte before departure.
When our governments do not succeed in addressing the problem, we have no other choice but to take matters into our own hands.
Around 20 ships that sailed from Barcelona have gathered in Bizerte, from where the last ones departed on Monday morning, reports AFP.
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