The victims appear to members of the Sinaloa and Jalisco gangs fighting for control of the narcotics trade in Zacatecas state
The bullet-ridden bodies of 18 people were discovered after what appeared to have been a shootout between members of rival drug cartels in northern Mexico.
The bodies were found in a remote, rural area of the north-central state of Zacatecas, state security department spokeswoman Rocío Aguilar said on Friday.
