Hundreds of people held a demonstration outside the state government offices in a northern Mexico city, three days after an arson attack on a casino killed 52 people. Demonstrators were demanding that the Nuevo Leon state governor, Rodrigo Medina, and the mayor of Monterrey, Fernando Larrazabal, quit. No Comment | euronews: watch the international news without commentary | http://www.euronews.net/nocomment/