Unrest flares in U.S. cities despite arrest of Minneapolis policeman

Police officers face protesters after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in St. Paul, Minnesota, U.S. May 28, 2020. REUTERS/Adam Bettcher

MINNEAPOLIS (Reuters) - The white former Minneapolis police officer shown in video footage using his knee to pin an unarmed black man's neck to the street was charged with murder on Friday in the man's death, an incident that has unleashed four nights of violent protests.

Derek Chauvin, who was dismissed from the police department with three fellow officers the day after the fatal encounter, was arrested on third-degree murder and manslaughter charges for his role in Monday's death of 46-year-old George Floyd.