A protest against late-running commuter trains on Tuesday in Buenos Aires turned violent when a mob set fire to train cars and fought pitched street battles with police just days ahead of an Americas-wide presidential summit in Argentina, Reuters reported. The riot began when passengers staged a protest over delays in the train service. They were then joined by what Interior Minister Anibal Fernandez called "leftist and union groups" in a violent outburst that lasted more than five hours. Demonstrators torched at least 15 train cars, a suburban Buenos Aires train station and at least one police car. Authorities said 87 people were arrested. The melee erupted days before the start of the 34-nation Summit of the Americas in the Argentine beach resort of Mar del Plata, 250 miles (400 km) south of Buenos Aires.
