Racial tensions were also high between whites and ethnic minorities that cities like Chicago, Detroit, Los Angeles, and Harlem experienced race riots in 1943.[167] In May 1943, in Mobile, Alabama, when the local shipyard promoted some Black men up to be trained as welders, white workers rioted and seriously injured 11 of their Black co-workers.[2] In Los Angeles, the Zoot Suit riots of 3–8 June 1943 saw white servicemen attacking Chicano (Mexican-American) and Black youths for wearing zoot suits.[156] On 15 June 1943, in Beaumont, Texas, a pogrom saw a white mob smash up Black homes while lynching 2 Black men.[156] In Detroit, which expanded massively during the war years with 50, 000 Black people from the South and 200, 000 "hillbilly" whites from Appalachia moving to the city to work in the factories, competition for sparse rental housing had pushed tensions to the brink.[156] On 20 June 1943, false rumors that a white mob had lynched 3 Black men led to an outbreak of racial rioting in Detroit that left 34 dead, of whom 25 were Black.[156] On 1–2 August 1943, another race riot in Harlem left 6 Black people dead.[156]