According to Sonora, Mexico media reports there were 10 homicides on the afternoon of June 10, making it the bloodiest day in recent memory for the state. Nine of the homicide victims were gunned down in border towns along the border between Arizona and Sonora.

The carnage started in the Sonora border city of Agua Prieta, located south of Douglas, Arizona. There, four men and one woman were killed by gunfire early Monday afternoon.

Shortly after those murders, at approximately 1:30 p.m., four men in a Chevrolet HHR were gunned down in a hail of gunfire along the highway on the south outskirts of Naco, Sonora.

Naco is located on the Sonora border approximately seven miles south of Bisbee, Arizona and is a 23-mile drive from the scene of the earlier deaths in Agua Prieta. The highway through Naco is a route to the tourism area along the Rio Sonora.

The tenth victim of gun violence in Sonora on Monday afternoon was a man found shot in a house on the corner of Calle Sufragio Efectivo and Juarez in the state capital of Hermosillo.

Details of the last homicide were still sketchy, but they did mention that the shooting occurred during a kidnapping attempt.

Because of apparently escalating tensions in the eastern border between Arizona and Sonora, we advise travelers to exercise extreme caution if you plan to visit or pass through Agua Prieta or Naco, Sonora.