Several of the victims are aged 14 to 15 and say they were forced to travel to nearby hotels.
The men they slept with paid as much as US$430, most of which went to organisers of the ring.
The victims were paid as little as 20 dollars, or nothing at all, local newspaper VnExpress reported.
Local official Nguyen Duc Chung has asked police in Hanoi to investigate the issue after the show aired on Vietnamese television on Tuesday.
A senior student in the school, located in Ba Vi District just an hour from Hanoi, said she was instructed by a woman from neighbouring Son Tay Town to coerce young, virgin students into prostitution - she could earn extra money that way.
"I tried to push him away, but I couldn't.
"He locked the door, I tried to run but couldn't," one victim said, as quoted by VnExpress.
While the names of the sex offenders have not been revealed, one victim said a man she was forced to have sex with is the director of a bank.
Sex with anyone under the age of 16 in Vietnam is classified as statutory rape.
In 2018, Vietnamese police recorded 1,547 child abuse cases, yet due to a culture of shame around abuse, the real figure is likely to be far higher. - dpa/Asian News Network
What do you think of this article?