Driving in and through Nogales

You should defer non-essential travel between the city of Nogales and the cities of Sonoyta and Caborca (which area also includes the smaller cities of Saric, Tubutama, and Altar), defer non-essential travel to the eastern edge of the State of Sonora which borders the State of Chihuahua (all points along that border east of the northern city of Agua Prieta and the southern town of Alamos), defer non-essential travel within the state south of the city of Ciudad Obregon with the exception of travel to Alamos (traveling only during daylight hours and using only the Highway 15 toll road, aka cuota, and Sonora State Road 162), and exercise caution when visiting the coastal town of Puerto Peñasco. Sonora is a key region in the international drug and human trafficking trades, and can be extremely dangerous for travelers.  The region west of Nogales, east of Sonoyta, and from Caborca north, including the towns of Saric, Tubutama and Altar, and the eastern edge of Sonora bordering Chihuahua, are known centers of illegal activity.  U.S. citizens visiting Puerto Peñasco are urged to use the Lukeville, Arizona/Sonoyta, Sonora border crossing, in order to limit driving through Mexico, and to limit travel to main roads during daylight hours.