The first incident involved a 14-year-old in Bulandshar's Aurangabad and the second an eight-year-old in Dewai, police said.
Bulandshahr Superintendent Police told ANI: "It is sad and horrific. We are trying to come up with something to prevent heinous crimes. Minors are accused in the case. In Aurangabad case, four people were named and we have so far arrested two. However, two others who were named in Dewai rape case have not been arrested yet."
The victims have been admitted to a nearby district hospital for medical examination and check-up.
Further investigation is underway.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)