The attempt to block the flotilla carrying the famed climate activist comes 15 years after a similar aid effort ended in deadly violence.

Thunberg, a climate campaigner, is among 12 activists aboard the Madleen, which aims to break the blockade of Gaza and deliver humanitarian aid.

Thunberg, a climate campaigner, is among 12 activists aboard the Madleen, which is operated by the Freedom Flotilla Coalition.