U.S. Border Patrol said on Friday its resources were being stretched thin by larger and larger groups of Central American families left by smugglers in remote locations along the U.S. Mexico border.
Reports say Nogales Mayor Arturo Garino said the shooting took place after the driver refused to stop and tried to run over the CBP officer.
CBP officers seized the drugs and vehicle.
"Placing coiled concertina wire strands on the ground is typically only found in a war, battlefield, or prison setting, and not in an urban setting", the city council's resolution reads.
The CBP response came quickly after the Nogales City Council passed a resolution condemning the use of new razor wire that now covers the entirety of a tall border wall through downtown. "The shooting occurred at the Port of Nogales, DeConcini Crossing in Nogales, Arizona". Entry to the US was not affected.More news: Migrant caravan reaches town on Texas border
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The group was spotted west of Lukeville by a U.S. Customs and Border Protection helicopter sent to investigate a possible campfire seen on a surveillance camera.
As tensions are heating up in Nogales over concertina wire strung up across the border fence, the mayor of Douglas, Arizona, says increased border militarization is making life worse for residents in his city.
Photos published by the Nogales International newspaper show rows of concertina wire stacked along the approximately two-story wall.
Officers referred the tractor-trailer to a secondary inspection station, according to information obtained from CBP officials.