At least nine people were killed in two different gunbattles in Northern Mexico late Monday.
Officials say that the first gunfight took place late Monday afternoon in Agua Prieta, which is across the border from Douglas, Arizona. Four men and a woman were found dead in two cars and in the street in that exchange, with the bodies wearing tactical gear. Assault rifles were also found at the scene.
The second gunbattle took place two hours later on a highway in Naco. Four people were found dead inside of a car with Arizona license plates, and a 12-year-old boy was wounded by a stray bullet. He is expected to live.
Mexican officials have launched an investigation to determine if the two incidents were related.