NEW DELHI, March 1, (Agencies): Police are investigating the rape of a 7-year-old girl inside a state-run school in the Indian capital.

A Delhi police spokesman said Friday that police registered a rape case and were questioning teachers and security guards at the school. The spokesman spoke on condition of anonymity because he was not authorized to speak to the media.

Dr Sanjay Kumar, who helped treat the girl, said she had injuries consistent with rape.

Angry mobs gathered at the hospital and threw stones at a nearby bus, shattering its windows. Police cordoned off the road and were trying to disperse the crowd.

“The protesters were angry over the assault on the little girl and were demanding that police act against the culprit,” the police official told AFP.

The official, who asked not to be identified, said the second-grader was sexually assaulted on Friday morning while at school.

After police were called, the child was taken to hospital and later discharged.

“The crowds have dispersed and the situation is normal,” the official said. Police are investigating the case, he added.

Three men — two school-teachers and a security guard — have been detained for questioning, local media reports said.

India has seen a surge in anti-rape demonstrations in recent weeks after thousands took to the streets to protest against police inaction following the fatal gang-rape of a 23-year-old student on a Delhi bus in December.