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Brydie Monaghan | Sunday 31 August 2025 15:29 BST

Greta Thunberg gave a rousing speech before boarding a humanitarian aid flotilla to Gaza, the second attempt at delivering aid to Palestinians this year.

Before leaving Barcelona the climate campaigner called out world leaders for “betraying and failing Palestinians and all oppressed peoples of the world.”

Thunberg and other activists failed to break Israel's longstanding naval blockade of Gaza in June but were captured and deported.