LUCKNOW: Indian police said Thursday they were investigating a spate of rapes and hangings in a troubled northern region, as the national women’s rights body called for the state government to resign over the crisis.

India has been trying to restore its battered reputation for violence against women, but public outrage was reignited by the deaths last month of two girls, aged 12 and 14, who were gang-raped and lynched in their impoverished village in Uttar Pradesh.

On Thursday a woman said she had been gang-raped by four officers at a police station in the state, and police said they were also investigating the death of a nineteen-year-old found, like the two girls, hanging from a tree.

“The body was strung up using the girl’s long scarf,” senior police superintendent Ashutosh Kumar said, adding the incident occurred in a village in Moradabad district.

“The FIR was lodged by the girl’s brother against unidentified persons. He has alleged the girl was murdered,” Kumar told AFP.

The case is the latest in a series of attacks in Uttar Pradesh whose Chief Minister Akhilesh Yadav is under mounting political pressure to resign over his handling of law and order.

Mamata Sharma, head of the state-run National Commission for Women, urged Yadav to resign, calling his government’s failure to protect women “shameful.”

“The government not only fails in protecting their women but they don’t even have the police in their control,” Sharma told NDTV.

Prime Minister Narendra Modi on Wednesday urged all politicians to work together to protect women, in his first comments on the issue since the hanging of the girls sparked public outrage.

Modi warned politicians against “politicizing rape,” saying they were “playing with the dignity of women” in his first speech to Parliament since sweeping to power at last month’s national elections.

Meanwhile, India rebuffed accusations by a UN investigator that sex crimes are rife in the world’s biggest democracy, calling her analysis “simplistic” and full of “sweeping generalizations.”

The United Nations special rapporteur on violence against women, Rashida Manjoo, said violence against women was systematic and continued “from womb to tomb” in a report submitted to the UN Human Rights Council in Geneva.

“According to numerous interlocutors, the physical, sexual and psychological abuse of women in the private sphere is widely tolerated by the State and the community,” Manjoo wrote.