18-year-old Aakash Rathore collapsed on the field while playing cricket with other boys yesterday in Vaishali area of Indirapuram, SHO Indirapuram Gorakh Nath Yadav said.
The boy suddenly fell down while running and became unconscious, police said, adding that he was rushed to the hospital by his parents.
Rathore was declared brought dead by the hospital, Yadav said.
The postmortem report mentioned no injuries on the body, police said, adding that the viscera has been preserved and sent for further analysis to ascertain the exact cause of death.