Members of a bomb squad surrounded the area.
The protest was just one of a series of activities planned ahead of Monday’s eighth anniversary of the student’s disappearance.
On September 26, 2014, local police in Iguala, Guerrero kidnapped 43 students of a radical teachers’ college. They allegedly turned to a drug gang and never met again. The three victims were later identified by vertebrae fragments.
Last month, Deputy Interior Minister Alejandro Encinas, who heads a truth commission investigating the incident, called it a “state crime” and directly linked to the military, among state agencies. Others include local and state police.
Former Justice Minister Jesus Murillo Karam, who oversaw the initial investigation into the disappearance, was arrested last month on charges of torture, official misconduct and forced disappearance. Last week, Mexico arrested a retired general who was in charge of the local army base in Iguala when the kidnappings occurred.
Dozens of student protesters arrived at the Attorney General’s Office on a bus on Thursday morning. Police with helmets and riot shields have formed multiple lines of defense in front of the entrances.
On Wednesday, activists vandalized outside the Israeli embassy in Mexico City. Mexico is seeking the extradition from Israel of another key figure in the investigation into the disappearance of students.