Mexico City, November 13 ( RHC-EFE) -- Mexican Attorney-General Jesús Murillo has met once again with the families of 43 missing students in Chilpancingo, capital of the southern state of Guerrero, following a new wave of violent protests in the city.

The purpose of the meeting was to inform the families about the progress made in the investigation. The disappearance of the students more than six weeks ago from the town of Iguala has triggered a wave of protests in different parts of the country, sometimes turning violent.

The parents said they would continue their peaceful protests to pressure the federal government into giving results of the investigation, and also distanced themselves from the latest violence, in which the headquarters of the ruling Institutional Revolutionary Party in Chilpancingo were set ablaze in a protest called by students and teachers' unions.

The families' spokesperson, Felipe de la Cruz, said relatives of the missing students had urged governor Rogelio Ortega to take back his statements criminalizing the demonstrators and focus instead on finding the young students.

Last Friday, Murillo told the families of the students that three arrested gang members of the United Warriors drug cartel had confessed to killing and burning more than 40 people whom they claimed were students. But remains found in the area have so far not been identified as any of the missing.

Mexican President Enrique Peña Nieto pledged in a meeting with the families on October 29th to inform them on the findings of the investigation before making statements to the press.