Colombia's celebration of victory in the South American club soccer championship was marred by violence, with four fans killed in a night of boisterous revelry, according to AP. Authorities said they registered more than 600 street fights after Medellin's Atletico Nacional scored a 1-0 defeat of Independiente del Valle of Ecuador in Wednesday night's Copa Libertadores final. It was Nacional's second-ever title in the tournament and the first by a Colombian team since 2004. One of those killed was wearing the shirt of a rival Medellin club when he was slashed in the neck with a knife. There were also reports that mobs of Nacional fans attacked adversaries in Bogota. Police said at least 23 people were injured and more than 100 arrested.
