Indian state of Madhya Pradesh Friday night, a police official said Saturday.

"The woman and her husband were touring by bicycle in the state 's Datia district when the incident took place. The accused also looted their belongings before escaping in the forest. The victim was taken to a hospital and medical tests have confirmed rape," he said on condition of anonymity.

The police detained eight people, the official said, adding that her husband tried but could not save her from getting raped. "We have launched a major manhunt in the area," he said.

The gangrape of the Swiss woman came just three months after a 23-year-old medical student was gangraped by six men on a moving bus in the Indian capital.