This is an archived article that was published on sltrib.com in 2014, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Authorities have detained three of the four men who survived a multiple-fatality van crash involving smuggled immigrants last week on Interstate 70.

Two of the men are in the custody of U.S. Immigration and Customs Enforcement agents and one is in state custody, said ICE spokesman Carl Rusnok.

Meanwhile, at least some of the four men killed have been identified, said Utah Highway Patrol Sgt. Todd Royce. Royce would not disclose how many were ID'd or their names, saying information was being restricted to protect a "volatile" investigation. State and federal authorities are investigating the crash not just for traffic violations but also as a potential human smuggling case. The victims are undocumented immigrants from Mexico and El Salvador, Royce said.

The lone female who was traveling with the eight men has not been found, Royce said. She fled the scene of the crash, which occurred about 4:30 a.m. Friday about 34 miles west of the Utah-Colorado state line. Witnesses didn't know whether she was a child or an adult, troopers have said.

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