New protests over Mexico missing

Protests over the 43 student teachers missing in Mexico are refusing to go away.

December 26th was the three-month anniversary since they vanished in Guerrero state.

These demonstrators in Iguala city, from where the students disappeared, vented their anger on a local army base.

The students went missing on September 26 after confrontations with police in Iguala, in southern Guerrero state, that killed three students and three bystanders.

Authorities say they were abducted and massacred by a drugs gang.

Investigators searching for them have uncovered mass graves but the remains of just one of the missing students.

Many believe they're still alive somewhere.

The sister of one of the missing students was among the protesters.

(SOUNDBITE)(Spanish) GUADALUPE SANCHEZ, SISTER OF MISSING STUDENT, SAYING:

"It's been three months, three months without being able to sleep, eat, rest. My mother's exhausted. I ask the government to have some