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Thousands of anti-globalization protesters set cars on fire and tried to block leaders' delegations from entering the grounds of the Group of 20 summit Friday in Hamburg, Germany, as authorities sent in police reinforcement from other cities on the second day of protests.
Dozens of police officers built moving lines in different parts of Hamburg and used water cannons to force protesters away from streets across the city. The city boosted its police presence with reinforcements from around the country for the G-20 summit but asked for more support on Thursday night after the situation started to escalate.
At least 45 demonstrators were arrested, 15 were temporarily detained, and 160 police officers were injured early Friday, including three officers who were hospitalized.