On Saturday, a Border Patrol agent in southeastern California was struck and killed by a fleeing vehicle that had illegally entered the country. The agent was killed about 20 miles west of Yuma in the Imperial Sand Dunes Recreation Area. Witnesses say the agents were chasing a Hummer and a Ford pickup on Interstate 8 when the vehicles turned into the dunes. The agent was trying to place spike stripes in their paths and was struck by the Hummer. The agency did not immediately release the name of the killed border agent because his family had not yet been notified.