Twenty-three killed in Newark rebellion. The racial uprising spread to ten of the city's twenty-three square miles. More than 1,500 persons were injured and 1,300 were arrested. Police reported 300 fires. The Newark rebellion, the worst outbreak of racial violence since Watts, spread to other New Jersey communities, including New Brunswick, Englewood, Paterson, Elizabeth, Palmyra, Passaic, and plainfield. The National Guard was mobilized.