LUCKNOW, India (AP) — Police say three men have been arrested in northern India for brutally attacking the mother of a rape victim after she refused to withdraw her police complaint.

Superintendent Dinesh Kumar said Friday the men, including the father of the man accused in the May 11 rape, followed the mother into a field and beat her severely.

She was in critical condition in a hospital in Etawah, a small town in Uttar Pradesh state.

Meanwhile, investigators sought clues in a gang-rape elsewhere in the state that left two teenage cousins dead.

The cousins were raped and killed Wednesday by attackers who then hung their bodies from a mango tree. Angry villagers held a silent protest over alleged police inaction in the case.

Four men have been arrested, including two police officers.