Mexico City, January 6 (RHC-Xinhua) -- The Mexican National Attorney General's Office (PGR) has sent the wife of a jailed former mayor to federal prison for her role in a late-September attack that led to the mass abduction and probable massacre of 43 students.

Maria de los Angeles Pineda Villa, who has been held at a detention center in Mexico City for involvement in the September 26th attack, was taken to El Rincon federal prison in the western state of Nayarit, PGR sources said, without detailing the charges against her.

On September 26, 2014, six people were killed and 25 others injured in the clashes between students from the Ayotzinapa Teachers College in the state of Guerrero and municipal police of Iguala City. It was during that incident that 43 students were kidnapped and disappeared.

Jose Luis Abarca, her husband and ex-mayor of Iguala in southern Guerrero state, is being held at Altiplano prison in central Mexico State, for allegedly ordering the attack. He faces charges of kidnapping, organized crime and homicide.

Pineda Villa, whose detention warrant expired on Sunday, is believed to have family ties with an organized crime ring in the southern state known as Guerreros Unidos.

Authorities said that the local police handed over the students to members of Guerreros Unidos, who incinerated their bodies at a garbage dump. So far, only the remains of one student have been found and identified.

Following a weeks-long manhunt for the couple who went underground shortly after the incident, authorities announced they discovered Pineda Villa and her husband hiding out in Mexico City's populous district of Iztapalapa.