Updated

Police in central India say they have detained 20 men in central India after a Swiss woman on a cycling trip was gang-raped.

Police officer D.K. Arya said Sunday that no arrests have been made so far but police were questioning the men in connection with the rape and assault on the woman and her husband in Madhya Pradesh state.

Police have registered a case of rape against seven unidentified men and were searching nearby villages.

The Swiss ambassador in India has spoken to the couple and has demanded a swift probe of the incident.

The attack comes three months after the fatal gang-rape of a woman aboard a New Delhi bus outraged Indians and spurred the government to pass laws to protect women.