A rollover accident caused major traffic problems Wednesday morning on I-19 at Pima Mine Road. The Arizona Department of Public Safety says that 16 people were inside a truck when it rolled. Several of them suffered serious injuries. Twelve people were taken to the hospital by ambulance, plus 2 more by helicopter, and two fled from the scene. DPS Sgt. Paul Castellano says, "The people travelling in the vehicle appeared to be illegal immigrants." This is the second major accident involving illegal immigrant in the last two weeks.