A 51-year-old Danish tourist was robbed at knifepoint, gang-raped and beaten near a popular shopping district in the Indian capital on Tuesday.
The attack took place in the popular tourist district of Paharganj, surrounded by backpacker hotels and restaurants.
The unidentified victim lost her way and asked two men for directions back to her hotel. Five or six men appeared and she was sexually assaulted, said New Delhi senior police official Deepak Mishra.
After the attack, she was able to reach her hotel and get the owner to call police.
"When she came, it was miserable," said Amit Bahl, owner of the Amax Hotel. He said the victim was in bad shape.
"A robbery and rape case has been registered," Delhi police spokesman Rajan Bhagat told Reuters on Wednesday. "We are questioning a group of men."
No arrests have been made.
Danish ambassador Freddy Svane confirmed there "is a case of alleged raped concerning a Danish citizen," but gave no other details.
Police say the victim has already returned to Denmark.
Her iPad, phone and cash were also stolen in the attack.
Rape culture in India gained global attention in 2012, when a 23-year-old woman was gang-raped on a moving bus. She later died of internal injuries.
Since then, India has doubled prison time for rape to 20 years and made voyeurism and stalking a criminal act. But it has done little to stem the tide of sexual violence, says Ranjana Kumari, Director of India's Center for Social Research.
"This mindset is not changing," she said. "It's a huge challenge."