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Nadezhda Tolokonnikova (L) and Maria Alekhina, members of the Russian punk rock band Pussy Riot, pose for photographs in East London on November 14, 2014

Nadezhda Tolokonnikova (L) and Maria Alekhina, members of the Russian punk rock band Pussy Riot, pose for photographs in East London on November 14, 2014 (AFP Photo/Andrew Cowie)

London rioters battle police

January 1, 1970

A wave of violence and looting has raged across London since Saturday, as authorities struggled to contain the worst unrest since the 1980s.