A flotilla of about 20 boats organized by anti-Israel groups has left Tunisia on Monday morning on its way to the Gaza Strip, following repeated delays due to rough waters in the Mediterranean Sea.

The vessels, which originally set sail from Barcelona, disembarked at dawn from the northern Tunisian port of Bizerte, according to AFP.

Greta Thunberg, the Swedish climate activist, and Rima Hassan, a French European parliamentarian of Palestinian origin, are among those participating in the flotilla.