Supporters of Anonymous have also protested in Dublin and Belfast as the movement takes part in the global protest against corruption on Bonfire Night.
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There will be blustery showers across northern parts overnight with showery rain and sleet across the south.
Rap mogul Marion 'Suge' Knight has been arrested on murder charges after a fatal hit-and-run incident in Los Angeles.
The Canadian used only ice hooks to scale the frozen cliffs, and says the walls were "unstable" and "unpredictable".