Protesters clashed with police and torched patrol cars in the German city of Hamburg on Friday in fresh violence ahead of the G20 summit, police said. “An operation is under way against violent individuals” who threw petrol bombs and set fire to patrol cars near a police station in the city’s Altona district, federal police said on Twitter.
Riot police use a water cannon against protesters after the "Welcome to Hell" rally against the G20 summit in Hamburg, northern Germany on July 6, 2017.
Leaders of the world's top economies will gather from July 7 to 8, 2017 in Germany for likely the stormiest G20 summit in years, with disagreements ranging from wars to climate change and global trade. / AFP PHOTO / Christof STACHE (Photo credit should read CHRISTOF STACHE/AFP/Getty Images)