In Mexico City, a day of protest, a night of unrest over 43 missing students

Led by parents and relatives of the missing students, protesters all over the capital city marched toward the central square. (Photo: Diane Jeantet/Fox News Latino)

Various of the protest marches were led by parents and families of the missing students. (Photo: Diane Jeantet/Fox News Latino)

Officially more than 29,000 have disappeared since January 2006. But the figure has been questioned by local and international groups for omitting cases. (Photo: Diane Jeantet/Fox News Latino)

Fake street signs that related to the missing students were placed around the center of the city reading "Justice" and "Guerrero," for example. (Photo: Diane Jeantet/Fox News Latino)

People of all ages could be seen at the rally. (Photo: Diane Jeantet/Fox News Latino)

The rally started peacefully around 4 p.m. (Photo: Diane Jeantet/Fox News Latino)

Many protesters turn up with elaborately painted signs. (Photo: Diane Jeantet/Fox News Latino)

As a hooded group joined one of the marches, protesters from all over started shouting, âNo violence! No hoods!â (Photo: Diane Jeantet/Fox News Latino)

Not everyone at the protest was angry. (Photo: Diane Jeantet/Fox News Latino)

The protest was organized in support of families and friends of the 43 students abducted by police in the state of Guerrero on Sept. 26. (Photo: Diane Jeantet/Fox News Latino)

These men who hid their faces claimed to be part of a persecuted teacher's syndicate from the state of Guerrero. (Photo: Diane Jeantet/Fox News Latino)

For some people, the demonstration was a performance. (Photo: Diane Jeantet/Fox News Latino)

This protester's sign reads, "state terrorism." (Photo: Diane Jeantet/Fox News Latino)

For a long time, ordinary Mexicans have complained about the lack of a trustworthy justice system in the country. (Photo: Diane Jeantet/Fox News Latino)

People floated paper balloons in the air, wearing messages of solidarity for the 43 missing students. (Photo: Diane Jeantet/Fox News Latino)

Mexico City's Zocalo, one of the largest plazas in the world and a frequent spot for protesters to express their disapproval. (Photo: Diane Jeantet/Fox News Latino)

Thousands of students, teachers and families gathered in Mexico City's main square, which was the general meeting point for all different marches. (Photo: Diane Jeantet/Fox News Latino)

In the Zocalo, people set fire to a giant figure of President Enrique Peña Nieto. (Photo: Diane Jeantet/Fox News Latino)

Images of famous Mexican revolutionary figures could be seen in the Zocalo. (Photo: Diane Jeantet/Fox News Latino)

Young people painted on the ground of the Mexico City's central square. "Fue el estado" - "It was the state" - is one of the most popular slogans of the protesters.(Photo: Diane Jeantet/Fox News Latino)

People came from all over country. The man with the machete was from the state of Mexico. (Photo: Diane Jeantet/Fox News Latino)