Mexico City, Mexico (AFP)-Mexico’s president said Tuesday she has asked Washington to extradite two people wanted in the disappearance of 43 students over a decade ago in one of the Latin American country’s worst human rights atrocities.

Investigators believe the students from a teacher training college were abducted in the southern state of Guerrero in 2014 by a criminal group with the help of corrupt police. The students were on their way to a protest.

Despite dozens of arrests, there have been no convictions and the remains of only three victims have been identified. All the suspects, which also include a former attorney general, are Mexican nationals.

President Claudia Sheinbaum told reporters Tuesday she had asked US Secretary of State Marco Rubio for the extradition of two Mexicans believed to have been involved.

Rubio was on a visit to Mexico last week as the neighbors seek common ground on dealing with migration and drug flows.

Sheinbaum did not name the individuals being sought.

An inquiry by experts of the Inter-American Commission on Human Rights and a government report have pointed to the probable involvement of military leaders in the case.

More than 120,000 people are listed as missing in Mexico, a country plagued by cartel violence.