Russia's sex slave industry thrives, rights groups say

Young women in bright miniskirts and high heels line up to sell themselves in the dingy back streets throughout the Russian capital. Moscow's illegal flesh markets are flourishing, with up to 30 women at each pickup point, or tochka, standing in order of price for the night.

Russian police acknowledge human trafficking for sexual exploitation is a major problem.

Customers light up the lines with their car headlights, and are asked to pay between $100 and $700 for a woman.

Aid workers for groups fighting for women's rights here say Moscow is witnessing a surge in prostitution, including forced prostitution, as a result of Russia's booming economy.

They say thousands of young women are made to work as sex slaves on the city's streets, unable to escape from the ruthless and violent criminal gangs who traffic them. Watch Moscow's thriving sex trade »

"It's because of the economic boom they are brought here," says Afsona Kadyrova of the Angel Coalition aid agency, which rehabilitates trafficked women and children. "The fast pace of development in Moscow has fueled demand for a range of cheap workers, including prostitutes."

To investigate the thriving trade, CNN went undercover posing as potential customers and gained access to speak directly to the prostitutes and their pimps.

"Take your pick from any of the girls," the female organizer says at one location, lines of women all around. "The expensive ones are on the right, for $600 and $700 a night. The women on the left are $100."

Aid agencies say many of the women working here are tricked into coming to Moscow on the promise of an education or a good job. They say others are simply kidnapped from their hometowns and forced to work as prostitutes in Moscow. Watch one woman describe how her uncle duped her into prostitution »

Russian police acknowledge human trafficking for sexual exploitation is a major problem, saying they do what they can to fight it by raiding brothels suspected of forced prostitution and arresting gang members who run them. But the problem, they say, lies elsewhere.

"First of all, we have virtually open borders, and badly controlled migration flows from nearby countries," says Alexander Krasnov of Russia's Interior Ministry Police.

"Secondly, we still don't have a basic law that defines victims' rights. At the moment, it's mostly aid agencies that deal with it."

Aid agencies say they are handling a growing number of deeply traumatized victims rescued from brothels and pimps in the Moscow area. One U.N. organization, the International Organization for Migration, recently opened a treatment and rehabilitation center to cope with the large numbers of sexually exploited and trafficked women who come for help.