NEW DELHI (AP) — Indian police said they arrested six men Sunday in connection with the gang rape of a Swiss woman who was on a cycling vacation in central India.

A police officer in Gatia district of Madhya Pradesh state said the men all admitted to the crime. He spoke on condition of anonymity because he was not authorized to speak to the media.

Police say the woman and her husband had camped out in a forest in Datia district of Madhya Pradesh when they were attacked by a group of men Friday night. They say that the couple were robbed and beaten, and that the woman was gang-raped.

The woman, 39, was treated Saturday at a hospital in the nearby city of Gwalior and was released later that day, police said.

The attack came three months after the fatal gang rape of a 23-year-old student aboard a moving bus in New Delhi, the capital, set off nationwide protests, sparking a debate about the treatment of women in India and highlighting the inability of law enforcement agencies to protect them.