On April 24, 2005 a march called by AMLO was attended by an official estimate of 1.2 million people (as estimated by the Federal District government's Secretary of Public Security). This figure includes union and government workers. The march culminated on the Zócalo, in the center of the city, participants either expressing their solidarity towards López Obrador or their disapproval of the "desafuero" process. This was probably the most widely attended political event in recent times, and comparable to the apolitical march against crime held two years before.