A group of 39 boats known as the Global Sumud Flotilla has set sail from Barcelona to deliver humanitarian aid to Gaza, with organisers saying more vessels are expected to join along the route — making this their largest mission so far, reports Al Jazeera.

Israeli security forces illegally intercepted and detained crew from a similar flotilla last year, but organisers say rough sea conditions mean the journey will be slower this time.

The fleet is expected to reach international waters later this week.

• READ MORE: States must ensure safe passage for Global Sumud Flotilla as a civilian mission challenging ongoing genocide
• Other Sumud Flotilla reports
• Kia Ora Gaza website

Organisers accused Israel of repeatedly violating the ceasefire and expanding control in Gaza.

They said the flotilla aims to challenge what they describe as an illegal blockade.

About a total of 80 boats from around the world carrying about 1000 people are expected to join the flotilla.

Al Jazeera reporter Mohammad Saleh said from the dockside in Barcelona: “The aim is to break the Israeli blockade of Gaza and to deliver life-saving aid and relief to a besieged population.”

Global Sumud Flotilla heads from Barcelona to Gaza            Video: Al Jazeera

One of the New Zealand supporter crews, Palestinian-Syrian Rana Hamida, said: “On the Global Sumud Flotilla, resistance songs have proved that encouraging comrades and showing our spirits can’t be crushed IS essential activism.

“Dissent comes from singing our truth, sailing toward freedom, and standing firm in solidarity.

“Every voice, every wave, every stance breaks through the siege. Our strength is collective, and our will is unbreakable.”

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