Mexico City taxi drivers blocked major avenues and access to the capital’s international airport on Oct 7 to protest against digital platforms like Uber Technologies Inc, Didi Chuxing Inc and Cabify.

The capital’s airport warned passengers via twitter to take extra precautions as protesters stopped traffic at both terminals. Some cab drivers have even set up camp inside the airport, and traffic was at a standstill for miles leading up to the terminal access, according to footage from local media. Hundreds of cabbies parked side-by-side along Paseo de la Reforma, shutting down the main boulevard in the city’s business center.