Mexico City, February 16 (RHC-teleSUR)-- A Mexican woman belonging to a group of activists searching for their disappeared relatives in mass graves was murdered Friday in Iguala, state of Guerrero.

Two men on a motorbike shot activist Norma Bruno in the head in front of her three children, according to reports by authorities.

Bruno belonged to the citizen committee Relatives of the Other Disappeared, created after the discovery of several mass graves in the neighboring areas of Iguala, shortly after the forced disappearance of the 43 Ayotzinapa teachers training college students.

Since November 23rd, the committee, with the help of medical experts from the attorney general's office, have been able to locate and exhume 48 bodies in the hills of Iguala, including three bodies that were successfully identified and handed over to their families.

About 1,600 people have gone missing in the country during President Enrique Peña Nieto's term, according to a recent report from a victims’ commission.

Demonstrations have been held across the country since September, with protesters demanding an end to government corruption after it was discovered that a local mayor and his wife were involved in the disappearance of the students.

The situation of the 43 disappeared students has become a symbol of the larger problems of government corruption and impunity in the country. Protesters have accused all levels of government, municipal, state and federal, of being responsible for the mass killings and disappearances of thousands of people across the country.