(CNN)A 19-year-old woman from the Dalit community in the northern Indian state of Uttar Pradesh died Tuesday, two weeks after she was allegedly gang-raped and strangled by upper caste men, local authorities said.
Indian woman from Dalit community dies after alleged gang-rape
Hathras district Police Superintendent Vikrant Vir said in a statement posted on Twitter that the incident took place on September 14. The victim was first admitted to a hospital in Uttar Pradesh and and later transferred to New Delhi due to the severity of her injuries.
Four men have been arrested and booked for rape and murder and an investigation is underway, according to the police in Hathras.
All four men were from an upper caste and have also been booked under the law for crimes against minorities, according to the statement.
In India's caste-based hierarchy, Dalits -- who are ranked the lowest and have been referred to as "untouchables" in the past -- experience severe discrimination. India's caste system was officially abolished in 1950, but the 2,000-year-old social hierarchy imposed on people by birth still exists in many aspects of life. The caste system categorizes Hindus at birth, defining their place in society, what jobs they can do and who they can marry.