https://www.bbc.co.uk/news/uk-england-manchester-47303471A man has been arrested over racist graffiti daubed on doors at a block of flats.David Yamba, 10, found "No Blacks" painted on three doors in his block in Salford on 8 February, five days after his family had moved in.A 54-year-old man has been arrested on suspicion of racially aggravated criminal damage and is being questioned by police.David's father had earlier criticised police for a slow response.