"Estamos en un enfrentamiento con gente de Los Zetas" - "We are engaged against Zetas" is what the Marine recording the confusion and noise of combat says early into the first of three videos that records a firefight against Zeta gunmen.
According to the Milenio Semanal weekly newsmagazine published Sunday, October 16, the squad of Marines engaged in battle in the dusk against a Zeta group belongs to Mexico's 7th Marine Infantry Batallion. The action took place in the vicinity of San Fernando, Tamaulipas, approximately 100 miles from the Texas border.
The exact date of the action is unknown but is probably recent. The casualties on either side are not mentioned.