Johannesburg — Multiple attackers killed 12 people and wounded at least nine in a late-night mass shooting in Johannesburg, police said Wednesday, the latest in such attacks that have shaken the South African city. Police said they believe more than 10 suspects were dropped off in a minibus in an informal settlement in the Cleveland suburb of Johannesburg late Tuesday night and started shooting. The attackers "moved through the area, opening fire on residents and community members at multiple locations before fleeing the scene in the same vehicle," police said in a statement. The victims were nine men and three...