BARCELONA: A Gaza-bound flotilla carrying humanitarian aid and pro-Palestinian activists including environmental campaigner Greta Thunberg departed Barcelona again on Monday, several hours after winds forced it to return to the Spanish port, according to AFP journalists at the scene.

Around 20 vessels left the Spanish city on Sunday aiming to “open a humanitarian corridor and end the ongoing genocide of the Palestinian people” amid the Israel-Hamas war, said the Global Sumud Flotilla — sumud being the Arabic term for “resilience.”

But “due to unsafe weather conditions,” the flotilla returned to port “to allow the storm to pass,” the organization said in an earlier statement, without specifying when exactly the boats returned to Barcelona.

“We made this decision to prioritize the safety and well-being of all participants and to safeguard the success of our mission,” it added, citing gusts that exceeded 55 kilometers (34 miles) per hour.

Organizers said they were especially concerned about the risk the weather posed to the smaller boats.