MADRID –  Police in Spain arrested 22 alleged pimps who purportedly tattooed women with bar codes as a sign of ownership and used violence to force them into prostitution. 

Police are calling the gang the "bar code pimps." Officers freed one 19-year-old woman who had been beaten, held against her will and tattooed with a bar code and an amount of money — €2,000 ($2,650) — which investigators believe was the debt the gang wished to extort before releasing her.

The woman had also been whipped, chained to a radiator and had her hair and eyebrows shaved off, according to an Interior Ministry statement.