DSK detained over role in prostitution ring

French police detained former IMF chief Dominique Strauss-Kahn for questioning over allegations he took part in orgies in Paris and Washington paid for by a pair of businessmen.

The 62-year-old former Socialist minister, who until last year was seen as the front-runner to replace Nicolas Sarkozy as French President, was summoned as a witness but prosecutors said he is now a suspect.

He arrived voluntarily at a police station in the northern city of Lille for an appointment for questioning about his role in the latest sex scandal to beset his career.