SAN FRANCISCO — The FBI says 12 child prostitutes have been rescued and 21 alleged pimps were arrested in the San Francisco Bay Area as part of a nationwide crackdown on child sex trafficking.

San Francisco FBI Special Agent in Charge David Johnson said Monday that the Bay Area had the nation's highest number of child prostitutes rescued during last week's sweep known as Operation Cross Country.

The Bay Area accounted for 11 percent of child prostitutes rescued and nearly 12 percent of the total number of alleged pimps arrested nationwide.

Nationally, 105 children who were forced into prostitution were rescued and 150 people described as pimps were arrested during the raids across 76 cities in the United States.

Detroit and Milwaukee had the second-highest number of child prostitutes rescued with 10 each.

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