The incident occurred yesterday when the girl had gone to relieve herself in a nearby field where the accused Sajid and Dilshad followed her and gang raped her at gunpoint, they said.
The victim has been sent for medical examination and investigations are going on, they said.
In a separate incident, a woman was allegedly gang raped by her landlord's sons, police said.
She was recovered in an unconscious state by her neighbours, who then informed the police.
The incident occurred yesterday when the two accused Bhatan and Satar came to her house for tea and mixed some intoxicant in her beverage. When she fell unconscious, they gang raped her.
A case has been registered and investigations are going on in the case, they said adding that the woman has been admitted to hospital where her treatment is going on.