US government officials' travel to Nogales, Mexico restricted due to 'threat information'

For Tucson residents who cross into Nogales, Sonora, or have work, family, business or travel connections there, the latest U.S. security notice brings new limits to official movement in the border city. U.S. government employees are being told to restrict travel and activities in Nogales to essential movement during daylight hours only, after federal officials cited unspecified “threat information.” The U.S. Embassy and Consulate in Mexico issued the alert over the weekend, but did not identify the nature of the threat, say where it was located or provide a timeline for the restrictions.

The warning applies specifically to U.S. government activities and travel, while also urging American citizens to use greater caution in Nogales. The consulate’s notice directs people to remain aware of their surroundings, seek shelter if an incident occurs, inform friends and relatives that they are safe and follow instructions from Mexican law enforcement. It does not announce a closure of the border or prohibit private citizens from entering Nogales. Instead, it adds a new security warning to an existing State Department advisory that already classifies Sonora as Level 3, meaning travelers should reconsider going there.

The alert was posted by the U.S. Consulate General in Nogales on Sept. 6. The wording says government operations in the city and travel to it have been limited because of threat information, with only essential movement allowed during daylight hours. No federal agency described whether the information involved crime, organized criminal activity, a specific planned incident or another type of danger. The lack of detail leaves the public with safety instructions but few facts about what prompted the change.

A broader State Department advisory issued Aug. 22 warned of crime in Sonora and noted that parts of the state are frequently used for drug trafficking and human trafficking. The advisory assigns Sonora a Level 3 rating, one step below the department’s highest warning, “do not travel.” It lists violent crimes reported in Mexico as including homicide, kidnapping, carjacking, sexual assault and robbery, and also warns of the possibility of terrorist violence, including attacks and other activity. At the same time, the department says northern Sonora generally experiences lower crime levels than cities closer to Sinaloa and other parts of Mexico.

The existing guidance divides Sonora into areas with different restrictions. Eastern Sonora, which borders Chihuahua, and locations along the border east of Federal Highway 45 are listed as prohibited for U.S. government employee travel. Areas west of the Mariposa Port of Entry, east of Sonoyta and north of Altar are designated “do not travel” zones. San Carlos, Guaymas, Empalme and every location south of Hermosillo along Federal Highway 15 also carry that designation.

Nogales is subject to its own transportation and nighttime rules for U.S. government employees. They are not allowed to use taxis there, although bus travel is encouraged. At night, a vehicle must be the mode of transportation, and employees are instructed to avoid El Centro and all nightclubs after 10 p.m. Travel between Nogales and Hermosillo is permitted only during daylight hours, using Federal Highway 15 through Imuris, Magdalena and Santa Ana. The guidance also says employees going to Puerto Peñasco, commonly known as Rocky Point, may use the Lukeville crossing, while the alternate route on Federal Highway 8 should be traveled only during the day.

The restrictions reflect a longer pattern of heightened caution around travel in Sonora, rather than replacing the state’s existing advisory. The department has previously warned that conditions can change at any time, and the latest Nogales notice shows how quickly operating rules can become more restrictive when officials receive new information. For people considering a trip from the Tucson area, the practical message is to check current federal guidance before crossing, plan for daylight travel and be prepared to follow directions from Mexican authorities if an incident occurs.

The announcement also drew reaction from former Border Patrol Agent Art del Cueto, who said on social media that officials had released no information about the threat. He urged people to stay safe and noted that he lives less than an hour from Nogales. His comments underscored the uncertainty surrounding the alert, particularly for residents in Southern Arizona who are close to the border but have not been told whether the warning reflects a specific danger in Nogales or a broader concern.

For now, officials have provided no announced end date, additional explanation or public description of the threat information. U.S. citizens who decide to travel are being asked to exercise increased caution, remain alert, seek shelter during an incident, notify family and friends of their safety and comply with Mexican law enforcement instructions. The State Department’s Level 3 recommendation to reconsider travel remains in effect, while the stricter daylight-only rule applies to U.S. government employees and their official movements in and to Nogales.