LAREDO, Texas (AP) — A U.S. Border Patrol agent investigating suspected human smuggling with other agents in Texas fatally shot a person driving a vehicle carrying people believed to be in the country illegally, federal officials said Saturday.

Border Patrol agents, Immigration and Customs Enforcement officials and the Webb County constable’s office had stopped a semi in Laredo Friday and found several people inside the trailer, according to a statement from Customs and Border Protection spokesperson Rick Pauza.

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Another semi then arrived at the scene, according to a statement, and law officers identified themselves and were approaching the tractor-trailer when the driver began moving in reverse, pinning a Border Patrol agent against another vehicle.

Other agents then opened fire, shooting the driver, who was pronounced dead at the scene. The injured agent was taken to a hospital, where he as treated and released Saturday, according to the statement.

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No names have been released.

The shooting is being investigated by Laredo police, the FBI, the border patrol and ICE, the statement said.

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