Israel's defence minister says climate protester Greta Thunberg and others on board are "Hamas propaganda spokespeople".

Israel said it would stop a ship piloted by pro-Palestinian activists, including Greta Thunberg, from breaking its blockade of the Gaza Strip. Thunberg is one of 12 activists, including a minister of the European Parliament,

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