Mexico marked six months since 43 students disappeared after being taken into police custody, events that captured national and international attention.
The students from a rural teachers college last were seen in Iguala, a city in the southwestern state of Guerrero. Federal investigators say local police handed the students over to a drug gang, which killed them and incinerated their remains. Nearly 100 people have been detained in the case.
Only one victim’s remains have been identified, however, and parents of the young men have continued to demand answers about the events of September 26.
Read more: Understanding Ayotzinapa
Parents and their supporters marched Thursday in Mexico City. A protest also was planned at the federal elections office with the intention of halting June 7 elections in Guerrero.