Jaipur, July 18 -- A 17-year-old girl died after 13 female students fell into a septic tank while cleaning it at a madrasa in Rajasthan's Deeg district on Friday, police said.

The 12 injured students were admitted to a nearby hospital and are undergoing treatment. The incident took place at Mill Madrasa in the Gopalgarh area, where students were allegedly assigned cleaning work.

Police have identified the deceased as Rohin, a resident of Sakras village in Haryana. Police took custody of the body and sent it for postmortem.

A staff member from the madrasa management, requesting anonymity, said that a slab covering the septic tank on the premises had collapsed a few days earlier.

"The tank was subsequently cleaned using machines, but so...