A minor girl was found dead with one of her kidneys missing in village Bhitokhar in Barabanki, police said on Monday.
"Her death is suspected to be a case of human sacrifice as the kidney has not been taken out scientifically, SP Navneet Rana said.
The decomposed body of the five-yr-old girl was found in a field on the night of Jun 11, he said.
The girl was missing from June 8, when she went to attend a marriage function with her father.
Autopsy report indicated that the girl was not raped, police said adding that a probe is on.