The U.S. Border Patrol says an agent trying to detain a group of suspected undocumented immigrants fatally shot a person when he was attacked.
The Border Patrol said the unidentified agent was investigating a report of illegal activity Wednesday in Rio Bravo, just south of Laredo, when he came across the group.
The agency said in a statement Thursday that the agent was trying to take them into custody when some attacked him "using blunt objects."
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The agent fired at least once, striking one of his assailants. Three others who fled were apprehended by responding agents.
The FBI and Texas Rangers are investigating the shooting.