Rebel forces under General Alvaro Obregon attacked the federal garrison of about 400 infantry.

Fighting lasted for a few hours before the federal commander colonel Emilio Kosterlitzky was captured.

The remaining federal troops retreated across the border and surrendered to the United States Army garrison of Nogales, Arizona.

Captain Cornelius C. Smith relieved the federals of their weapons and they eventually found their way back to Mexico.

The federals lost four men killed and five wounded, and Nogales, Sonora fell to the Constitutionalists.