US immigration agent shot dead in Mexico attack
16 February 2011 Last updated at 01:42 GMT
US
immigration agent shot dead in Mexico attack
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A US Immigration and Customs Enforcement agent has been shot dead and a second wounded in Mexico.
Officials say the pair, described as "special agents" shot "in the line of duty", were driving between Mexico City and northern city of Monterrey.
An official told AP they had been attacked after stopping at a security checkpoint in San Luis Potosi state.
The attack comes as a US report says a fifth of the Mexico border, some 375 miles (600km), is not properly guarded.
The investigative arm of Congress, the General Accounting Office (GAO), said the area lacked enough border agents to stop illicit activity such as gun running and illegal immigration.
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