Authorities are looking for nine school boys who together with one of their accomplice who has already been arrested gang-raped a Grade 10 student until she passed out in the latest horrific sex attack in India.

According to local reports, the girl who had enrolled in a government high school in the West Champaran district of Bihar, northeastern India was recently attacked on her way home.

Police say she was overpowered in a secluded spot before dragging her to a sugar cane field and raped by ten youths until she lost consciousness. They also warned of 'dire consequences' should she attempt to tell authorities of her ordeal.

The incident came to light when the girl whose exact age has not yet been revealed stopped going to school and her parents demanded to know why.

After her parents discovered what happened to her they reported the incident to the police who have already made one arrest with more pending, Gulf News reports.

In a statement by the local district superintendent of police, Arvind Kumar Gupta, he said: 'The incident is very serious and saddening. We are investigating the case. Everyone involved in the crime will be arrested.'