Hundreds of protesters marched in the streets of Mexico City on Saturday
to mark the sixth anniversary of the disappearance and apparent murder of 43 college students.
But as well as demonstrations the day also saw developments in the unsolved kidnapping.
Earlier on Saturday Mexican authorities issued dozens of arrest warrants for police and soldiers who they believe may have participated in the disappearance of students from the Ayotzinapa [IYO-TZIN-APA] Rural Teachers' College in the state of Guerrero. [GARE-RARE-OH]
It's the first time in the case that Mexican authorities have announced arrest warrants for military personnel.
In June, authorities announced the apprehension of the leader of a Guerrero gang and arrest warrants for Guerrero officials.
Family members of the victims have long accused Mexican authorities, including the military, of complicity in the students' disappearance.
The remains of only two of the students have been positively identified so far.
The 2014 kidnapping sparked massive protests and garnered international condemnation as one of the darkest examples of the government's longstanding difficulty preventing violence or convicting those responsible.