<p><br /> Angry passengers frustrated over a train strike threw bottles and rocks and set fire to entrance doors in Argentina.<br /> </p><p><br /> Violence broke out after a six hour strike by union workers at the Constitucion train station in Buenos Aires.<br /> </p><p><br /> Passengers trying to get home for Christmas were left frustrated and began rioting. The police were eventually called and they fired cannons of blue liquid to disperse the crowd.<br /> </p><p><br /> Several people were arrested and dozens were injured, one seriously.<br /> </p><p><br /> The Argentine government has said they will file a lawsuit against the union for disruption of public services.<br /> </p><p><br /> A police official said the passengers were reacting to a blockage of one of the lines by about 20 ex-employees fighting to get their jobs back.<br /> </p>
