PHOENIX -- The Maricopa County Sheriff's Office said 11 people have been arrested in an operation targeting false identifications used to gain employment.
Sheriff's officials said three locations of America's Taco Shop were targeted Thursday afternoon.
Two of the restaurants are in Phoenix and the other in Tempe.
Investigators said 16 workers were identified as using false identities and Social Security numbers.
Four of the 11 arrested Thursday were booked into jail on suspicion of identity theft and forgery.
Sheriff's officials said the other seven arrested were turned over to federal immigration authorities for border violations issues.