A man has been shot dead in Stockholm in what is likely to have been a further incident of gang violence, according to a media report citing the police on Saturday. Rescue workers were unable to revive the man aged between 20 and 30, who was shot on Friday evening in the Skärholmen district in southern Stockholm, Aftonbladet newspaper reported. One man has been detained on suspicion of murder, the report said. The death is likely to be related to the gang warfare that has long plagued the country. Police detained several more people during searches in the area, suspected of other offences that…