Photo released by Aton of demonstrators lighting bonfires in Vaparaiso, Chile, on October 19, 2019. - Chilean President Sebastian Pinera announced Saturday the suspension of the increase in the price of metro tickets which triggered violent protests. (Photo by Sebastián CISTERNAS / ATON CHILE / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / ATON / SEBASTIAN CISTERNAS " - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS