
The incident happened Saturday in the Kallar Kahar valley in Chakwal district, around 120 kilometres from Islamabad.
"The girl Rehana Bibi was alone at her home and was listening to music when her uncle Muhammad Gulistan... came to her house and asked to lower the volume," Sadat Ali, an official on duty at Kallar Kahar police station, told AFP.
"On her refusal, they quarrelled and Gulistan shot her dead," said Ali, adding that Bibi was aged about 17.
“He shot her with a 33-bore pistol,” police officer Qaisar Abbas told Reuters.
Another police official, Ali Akbar, said they were attempting to arrest the killer.
Police said they were not aware of any family feud leading up to the attack.
Women are frequently killed over minor issues or so-called matters of "honour". The Aurat Foundation, a campaign group that works to improve women's lives in Pakistan, says more than 3,000 have been killed for "honour" since 2008.
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