In Mexico, security forces have arrested a local drug cartel leader suspected of murdering nine women and children, The Guardian reported.

The victims were U.S. citizens who belonged to an isolated Mormon community living in the Sierra Madre mountain range of Mexico.

Local newspaper El Diario de Juárez has reported that Roberto González Montes was arrested on Monday.

The operation was carried out by the Federal Prosecutor's Office and involved military and naval soldiers.

Adrián LeBarón, whose daughter and her 8-month-old twins were murdered in the attack, commented on the arrest on Twitter.

According to him, Montes is linked to the armed wing of the Juárez cartel in La Línea.

According to LeBarón, the arrest was "a step towards finding out the truth about who killed my child."

  • Read more: Six children and three women murdered in Mexico by unknown gunmen - Mormon victims were U.S. citizens

The massacre shocked both Mexico and the United States.

The victims belonged to the LeBarón family.

The attack took place when a convoy of three cars en route from the small town of Bavispe to Janos was ambushed.

- Women and children were slaughtered and burned alive.

The mothers screamed the fire.

We have a very close community and we share everything that happens.

We’ve been dealing with this tragedy since yesterday and shared all the information in our family groups, Alex LeBarón, who lost his family members, told CNN after the events.

A video filmed after the attack featured burnt and bullet-hollowed cars spread on social media.

Eight children survived the massacre.

One of the survivors was 13-year-old Devin Langford, who saw his mother and two brothers die on the bullets of the attackers.

Langford fled the terrain with his six siblings.

The boy hid his siblings in the bushes and walked 23 miles to La Mora, where the Mormon community is headquartered.

  • Read more: Devin, 13, a survivor of the Mormon massacre, hid his siblings in a bush and walked for 6 hours to seek help - thus the shocking events progressed