The Global Sumud Flotilla has once again set sail for Gaza, more than six months after its previous mission was obstructed by Israel, aiming to draw attention to the worsening humanitarian crisis in the Palestinian enclave.

Following a delay of several days due to weather conditions, 39 boats carrying around a thousand activists from around the world have now set sail from the Spanish coastal city of Barcelona, organizers said Wednesday.

The pro-Palestinian activists intend to make another attempt to break through the Israeli naval blockade of the Gaza Strip with dozens of boats and deliver aid supplies to the conflict region.