Plainfield was affected by the Plainfield Rebellion in July 1967. This civil disturbance occurred in the wake of the larger Newark riots. A Plainfield police officer was killed, about fifty people were injured, and several hundred thousand dollars of property was damaged by looting and arson. The New Jersey National Guard restored order after three days of unrest. This civil unrest caused a massive white flight, characterized by the percentage of black residents rising from 40% in 1970 to 60% a decade later.