Another shoot-up of a vehicle, this time just 20 miles south of Tucson ...

UPDATE 4/1/07 -- Here's an article with more info about the gun attack on a vehicle full of people driving from the border north towards Tucson:

Drug hijackers mistakenly open fire on 23 migrants, killing 2 by DAVID L. TEIBEL and CLAUDINE LoMONACO, Tucson Citizen

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Again, a vehicle carrying people crossing the border illegally has been shot at and people have been killed.

Members of the group described bullets cutting into the rear of the pickup as the driver tried to flee, Kastigar said. After a brief chase, the driver stopped and the people inside ran into the desert.

When deputies arrived they found the two dead and at least one wounded person.

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Arizona Republic: Gunmen ambush migrants, killing 2