LUCKNOW, India (AP) — Two teenage sisters in rural India were raped and killed by attackers who hung their bodies from a mango tree, which became the scene of a silent protest by villagers angry about alleged police inaction in the case. Two of the four men arrested so far are police officers.

Villagers found the girls’ bodies hanging from the tree early Wednesday, hours after they disappeared from fields near their home in Katra village in Uttar Pradesh state, police Superintendent Atul Saxena said. The girls, who were 14 and 15, had gone into the fields because there was no toilet in their home.