 By the 1950s, white working-class "Teddy Boys" were beginning to display hostility towards black families in the area, a situation exploited and inflamed by groups such as Oswald Mosley's Union Movement and other far-right groups such as the White Defence League, who urged disaffected white residents to keep Britain white.There was an increase in violent attacks on black people throughout the summer.On 24 August 1958 a group of ten English youths committed serious assaults on six West Indian men in four separate incidents.