Top concerns include the displacement of longtime residents as rents and food prices surge. Ire over the influx of well-heeled foreigners has been building for years.

Holding signs saying 'gringo go home' and 'no tourists,' Mexico City residents took to the streets to complain about what they say is the gentrification of their city.

A protest by hundreds against gentrification and mass tourism that began peacefully Friday in Mexico City neighborhoods popular with tourists turned violent when a small number of people began smashing storefronts and harassing foreigners.