Police raids follow shocking video of sexual assault in India's Manipur state amid ethnic violence

Editor's Note: This report includes details of sexual assaults and violence.

A graphic video showing two women being paraded naked in the northeastern Indian state of Manipur has provoked widespread anger in the country and spurred several arrests after it emerged on social media on Wednesday.

The viral video depicts an incident from May 4, according to the Indigenous Tribal Leaders' Forum (ITLF). Manipur Police described the incident on Twitter as "a case of abduction, gang rape and murder" on Wednesday.

Officials said Thursday that four people have been arrested and that police raids are ongoing. Authorities are interrogating more than three dozen men in relation to the apparent sexual assault, Reuters reported.

The video, which has been seen by CNN, shows two terrified women being forced to walk naked through a crowd of clothed men. The victims appear to be being groped and sexually assaulted while surrounded by a mob of men, many brandishing long canes or sticks as weapons.

The horrific footage emerged amid ongoing ethnic violence in the northeastern Indian state.

Indian Prime Minister Narendra Modi addressed the situation in the state for the first time on Thursday, saying: "My heart is filled with grief and anger. The incident in Manipur is shameful for any civil society."