Mexican authorities have arrested the former governor of the southern state of Guerrero for his alleged involvement in the 2014 disappearance of 43 students training to be teachers.
The former governor has been detained on charges that he concealed and ordered the destruction of evidence that could have helped shed light on the whereabouts of the students. The abduction and presumed murder of the students remains one of the country's most infamous criminal cases.
The 2014 disappearance rocked the nation and is considered one of the worst human-rights atrocities in the country. Marred by interference and missteps, the case has become a symbol for impunity and state involvement in cartel violence.