The clashes erupted on Monday when teachers demanding higher salaries and better pensions breached security at the entrance to the historic Zocalo square. The area is currently being prepared as a fan zone with a giant screen for the upcoming World Cup, which Mexico is co-hosting. sport-tr.bet
At least two people were injured as protesters responded to the tear gas by firing fireworks at the police. Union leader Filiberto Frausto told AFP that the World Cup event must be canceled, stating that their cause is far more important than "a little entertainment".
