Attorney General's Office of the Mexican State of Guerrero began investigation in connection with six dismembered bodies in 13 bags in a mountain town of Chilapa, USA Today reported.

State security spokesman Roberto Alvarez Heredia said that state police and soldiers responded to a 911 call Tuesday and found the bags on the side of a road in Chilapa township near a wastewater treatment plant. He noted that the bodies are in a state of decomposition.

Alvarez says in a statement that the preliminary investigation suggests the killings could be related to competition for control of the opium poppy cultivation in the area.