The U.S. government issued a security alert for Americans traveling to Mexicali, a northern Mexican border city, and temporarily suspended consular activities there due to a "potential threat." Details surrounding the nature of the threat were not provided.

The notice, released Monday night, stated that consular activities and travel to Mexicali, the capital of Baja California state situated across the border from Calexico, California, were suspended because of information about "a threat." U.S. officials urged citizens to avoid government buildings, seek shelter if an incident occurs, and remain aware of their surroundings.

Mexican President Claudia Sheinbaum confirmed Tuesday that the alert was related to information about "the possibility of a criminal group," noting that the report originated from U.S. agencies. She added that while no further information was available regarding the specifics of the alert, residents should remain vigilant.

Authorities in Baja California stated later Tuesday that they had "not identified any elements confirming a specific or imminent risk to the population." Nevertheless, surveillance and patrols in Mexicali were intensified as a "preventative measure." Baja California Governor Marina del Pilar Ávila reported that security operations would be reinforced in the state capital.

Mexicali, a city of over 1 million residents, is a significant urban center along the Mexican border, notable for its commercial and social connections with its U.S. counterpart, Calexico.