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by a man as she was boarding a bus in San Francisco's Tenderloin district. The bus driver then intervened, stopping the man from striking the woman again, letting him exit the bus and calling police.
The woman suffered a split lip in the attack. Police gave no indication of whether she required medical treatment or if a suspect was arrested.
Sunday's second attack occurred around midday, also in the Tenderloin district, when
a 55-year-old Asian man was punched in the face and knocked out while riding a bus. He fell to the floor and was later taken to a hospital for treatment of his injuries, police said.