Strauss-Kahn warned over alleged prostitution ring

Former International Monetary Fund chief Dominique Strauss-Kahn was formally warned Monday that he is under investigation for "aggravated pimping" for his alleged participation in a prostitution ring in France, prosecutors said.

He is not allowed to have contact with other people involved in the investigation, nor is he permitted to talk to the media about the case. Strauss-Kahn was released under a 100,000-euro bail, according to prosecutors.

Strauss-Kahn is now at a point in the French legal system that comes after an arrest and before charges.